Home / 112,060,355.70-168,090,533.55-81,210,205.65

Finding the Fourth Proportional to 112,060,355.70, 168,090,533.55 and 81,210,205.65

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Solution

The fourth proportional to 112,060,355.70, 168,090,533.55 and 81,210,205.65 is: 121,815,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060,355.70 : 168,090,533.55 = 81,210,205.65 : x
  2. Step 2: Convert to fraction form
    112,060,355.70/168,090,533.55 = 81,210,205.65/x
  3. Step 3: Cross multiply
    112,060,355.70x = 168,090,533.55 × 81,210,205.65
  4. Step 4: Simplify right side
    112,060,355.70x = 13,650,666,797,413,726
  5. Step 5: Solve for x
    x = 13,650,666,797,413,726/112,060,355.70
  6. Step 6: Final answer
    x = 121,815,308.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.