Home / 141,681.94-195,500.31-81,255.13

Finding the Fourth Proportional to 141,681.94, 195,500.31 and 81,255.13

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Solution

The fourth proportional to 141,681.94, 195,500.31 and 81,255.13 is: 112,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,681.94 : 195,500.31 = 81,255.13 : x
  2. Step 2: Convert to fraction form
    141,681.94/195,500.31 = 81,255.13/x
  3. Step 3: Cross multiply
    141,681.94x = 195,500.31 × 81,255.13
  4. Step 4: Simplify right side
    141,681.94x = 15,885,403,104.09
  5. Step 5: Solve for x
    x = 15,885,403,104.09/141,681.94
  6. Step 6: Final answer
    x = 112,120.17

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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.