Home / 112,060,285.20-168,090,427.80-81,210,135.15

Finding the Fourth Proportional to 112,060,285.20, 168,090,427.80 and 81,210,135.15

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Solution

The fourth proportional to 112,060,285.20, 168,090,427.80 and 81,210,135.15 is: 121,815,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060,285.20 : 168,090,427.80 = 81,210,135.15 : x
  2. Step 2: Convert to fraction form
    112,060,285.20/168,090,427.80 = 81,210,135.15/x
  3. Step 3: Cross multiply
    112,060,285.20x = 168,090,427.80 × 81,210,135.15
  4. Step 4: Simplify right side
    112,060,285.20x = 13,650,646,359,059,320
  5. Step 5: Solve for x
    x = 13,650,646,359,059,320/112,060,285.20
  6. Step 6: Final answer
    x = 121,815,202.73

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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.