Home / 131,859.38-181,966.12-71,430.14

Finding the Fourth Proportional to 131,859.38, 181,966.12 and 71,430.14

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Solution

The fourth proportional to 131,859.38, 181,966.12 and 71,430.14 is: 98,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,859.38 : 181,966.12 = 71,430.14 : x
  2. Step 2: Convert to fraction form
    131,859.38/181,966.12 = 71,430.14/x
  3. Step 3: Cross multiply
    131,859.38x = 181,966.12 × 71,430.14
  4. Step 4: Simplify right side
    131,859.38x = 12,997,865,426.86
  5. Step 5: Solve for x
    x = 12,997,865,426.86/131,859.38
  6. Step 6: Final answer
    x = 98,573.69

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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.