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Finding the Fourth Proportional to 101,713.72, 140,315.07 and 88,266.10

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Solution

The fourth proportional to 101,713.72, 140,315.07 and 88,266.10 is: 121,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,713.72 : 140,315.07 = 88,266.10 : x
  2. Step 2: Convert to fraction form
    101,713.72/140,315.07 = 88,266.10/x
  3. Step 3: Cross multiply
    101,713.72x = 140,315.07 × 88,266.10
  4. Step 4: Simplify right side
    101,713.72x = 12,385,064,000.13
  5. Step 5: Solve for x
    x = 12,385,064,000.13/101,713.72
  6. Step 6: Final answer
    x = 121,763.95

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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.