Home / 131,906.15-182,031.13-71,476.78

Finding the Fourth Proportional to 131,906.15, 182,031.13 and 71,476.78

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Solution

The fourth proportional to 131,906.15, 182,031.13 and 71,476.78 is: 98,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,906.15 : 182,031.13 = 71,476.78 : x
  2. Step 2: Convert to fraction form
    131,906.15/182,031.13 = 71,476.78/x
  3. Step 3: Cross multiply
    131,906.15x = 182,031.13 × 71,476.78
  4. Step 4: Simplify right side
    131,906.15x = 13,010,999,007.74
  5. Step 5: Solve for x
    x = 13,010,999,007.74/131,906.15
  6. Step 6: Final answer
    x = 98,638.30

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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.