Home / 141,684.48-195,517-81,252.20

Finding the Fourth Proportional to 141,684.48, 195,517 and 81,252.20

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Solution

The fourth proportional to 141,684.48, 195,517 and 81,252.20 is: 112,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,684.48 : 195,517 = 81,252.20 : x
  2. Step 2: Convert to fraction form
    141,684.48/195,517 = 81,252.20/x
  3. Step 3: Cross multiply
    141,684.48x = 195,517 × 81,252.20
  4. Step 4: Simplify right side
    141,684.48x = 15,886,186,387.40
  5. Step 5: Solve for x
    x = 15,886,186,387.40/141,684.48
  6. Step 6: Final answer
    x = 112,123.69

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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.