Home / 141,807.17-195,693.50-78,144.95

Finding the Fourth Proportional to 141,807.17, 195,693.50 and 78,144.95

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Solution

The fourth proportional to 141,807.17, 195,693.50 and 78,144.95 is: 107,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,807.17 : 195,693.50 = 78,144.95 : x
  2. Step 2: Convert to fraction form
    141,807.17/195,693.50 = 78,144.95/x
  3. Step 3: Cross multiply
    141,807.17x = 195,693.50 × 78,144.95
  4. Step 4: Simplify right side
    141,807.17x = 15,292,459,457.42
  5. Step 5: Solve for x
    x = 15,292,459,457.42/141,807.17
  6. Step 6: Final answer
    x = 107,839.82

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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.