Home / 127,720.17-176,253.90-74,036.34

Finding the Fourth Proportional to 127,720.17, 176,253.90 and 74,036.34

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Solution

The fourth proportional to 127,720.17, 176,253.90 and 74,036.34 is: 102,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,720.17 : 176,253.90 = 74,036.34 : x
  2. Step 2: Convert to fraction form
    127,720.17/176,253.90 = 74,036.34/x
  3. Step 3: Cross multiply
    127,720.17x = 176,253.90 × 74,036.34
  4. Step 4: Simplify right side
    127,720.17x = 13,049,193,666.73
  5. Step 5: Solve for x
    x = 13,049,193,666.73/127,720.17
  6. Step 6: Final answer
    x = 102,170.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.