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Finding the Fourth Proportional to 101,494.68, 140,060.70 and 56,172.66

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Solution

The fourth proportional to 101,494.68, 140,060.70 and 56,172.66 is: 77,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,494.68 : 140,060.70 = 56,172.66 : x
  2. Step 2: Convert to fraction form
    101,494.68/140,060.70 = 56,172.66/x
  3. Step 3: Cross multiply
    101,494.68x = 140,060.70 × 56,172.66
  4. Step 4: Simplify right side
    101,494.68x = 7,867,582,080.46
  5. Step 5: Solve for x
    x = 7,867,582,080.46/101,494.68
  6. Step 6: Final answer
    x = 77,517.19

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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.