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Finding the Fourth Proportional to 101,634, 140,250.48 and 56,311.92

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Solution

The fourth proportional to 101,634, 140,250.48 and 56,311.92 is: 77,707.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,634 : 140,250.48 = 56,311.92 : x
  2. Step 2: Convert to fraction form
    101,634/140,250.48 = 56,311.92/x
  3. Step 3: Cross multiply
    101,634x = 140,250.48 × 56,311.92
  4. Step 4: Simplify right side
    101,634x = 7,897,773,809.72
  5. Step 5: Solve for x
    x = 7,897,773,809.72/101,634
  6. Step 6: Final answer
    x = 77,707.99

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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.