Home / 127,854.72-176,437.20-74,144.76

Finding the Fourth Proportional to 127,854.72, 176,437.20 and 74,144.76

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Solution

The fourth proportional to 127,854.72, 176,437.20 and 74,144.76 is: 102,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,854.72 : 176,437.20 = 74,144.76 : x
  2. Step 2: Convert to fraction form
    127,854.72/176,437.20 = 74,144.76/x
  3. Step 3: Cross multiply
    127,854.72x = 176,437.20 × 74,144.76
  4. Step 4: Simplify right side
    127,854.72x = 13,081,893,849.07
  5. Step 5: Solve for x
    x = 13,081,893,849.07/127,854.72
  6. Step 6: Final answer
    x = 102,318.43

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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.