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Finding the Fourth Proportional to 131,959.98, 182,188.98 and 86,718.24

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Solution

The fourth proportional to 131,959.98, 182,188.98 and 86,718.24 is: 119,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,959.98 : 182,188.98 = 86,718.24 : x
  2. Step 2: Convert to fraction form
    131,959.98/182,188.98 = 86,718.24/x
  3. Step 3: Cross multiply
    131,959.98x = 182,188.98 × 86,718.24
  4. Step 4: Simplify right side
    131,959.98x = 15,799,107,693.00
  5. Step 5: Solve for x
    x = 15,799,107,693.00/131,959.98
  6. Step 6: Final answer
    x = 119,726.51

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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.