Home / 127,849.12-176,432-71,259.28

Finding the Fourth Proportional to 127,849.12, 176,432 and 71,259.28

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Solution

The fourth proportional to 127,849.12, 176,432 and 71,259.28 is: 98,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,849.12 : 176,432 = 71,259.28 : x
  2. Step 2: Convert to fraction form
    127,849.12/176,432 = 71,259.28/x
  3. Step 3: Cross multiply
    127,849.12x = 176,432 × 71,259.28
  4. Step 4: Simplify right side
    127,849.12x = 12,572,417,288.96
  5. Step 5: Solve for x
    x = 12,572,417,288.96/127,849.12
  6. Step 6: Final answer
    x = 98,337.93

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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.