Home / 131,680.47-181,718.46-71,252.18

Finding the Fourth Proportional to 131,680.47, 181,718.46 and 71,252.18

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Solution

The fourth proportional to 131,680.47, 181,718.46 and 71,252.18 is: 98,327.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680.47 : 181,718.46 = 71,252.18 : x
  2. Step 2: Convert to fraction form
    131,680.47/181,718.46 = 71,252.18/x
  3. Step 3: Cross multiply
    131,680.47x = 181,718.46 × 71,252.18
  4. Step 4: Simplify right side
    131,680.47x = 12,947,836,905.57
  5. Step 5: Solve for x
    x = 12,947,836,905.57/131,680.47
  6. Step 6: Final answer
    x = 98,327.69

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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.