Home / 112,060,331.70-168,090,497.55-81,210,181.65

Finding the Fourth Proportional to 112,060,331.70, 168,090,497.55 and 81,210,181.65

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Solution

The fourth proportional to 112,060,331.70, 168,090,497.55 and 81,210,181.65 is: 121,815,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060,331.70 : 168,090,497.55 = 81,210,181.65 : x
  2. Step 2: Convert to fraction form
    112,060,331.70/168,090,497.55 = 81,210,181.65/x
  3. Step 3: Cross multiply
    112,060,331.70x = 168,090,497.55 × 81,210,181.65
  4. Step 4: Simplify right side
    112,060,331.70x = 13,650,659,839,674,382
  5. Step 5: Solve for x
    x = 13,650,659,839,674,382/112,060,331.70
  6. Step 6: Final answer
    x = 121,815,272.48

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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.