Home / 105,915.19-146,163.10-57,517.13

Finding the Fourth Proportional to 105,915.19, 146,163.10 and 57,517.13

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Solution

The fourth proportional to 105,915.19, 146,163.10 and 57,517.13 is: 79,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,915.19 : 146,163.10 = 57,517.13 : x
  2. Step 2: Convert to fraction form
    105,915.19/146,163.10 = 57,517.13/x
  3. Step 3: Cross multiply
    105,915.19x = 146,163.10 × 57,517.13
  4. Step 4: Simplify right side
    105,915.19x = 8,406,882,553.90
  5. Step 5: Solve for x
    x = 8,406,882,553.90/105,915.19
  6. Step 6: Final answer
    x = 79,373.72

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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.