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Finding the Fourth Proportional to 101,600.63, 140,210.00 and 56,279.31

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Solution

The fourth proportional to 101,600.63, 140,210.00 and 56,279.31 is: 77,666.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,600.63 : 140,210.00 = 56,279.31 : x
  2. Step 2: Convert to fraction form
    101,600.63/140,210.00 = 56,279.31/x
  3. Step 3: Cross multiply
    101,600.63x = 140,210.00 × 56,279.31
  4. Step 4: Simplify right side
    101,600.63x = 7,890,921,773.70
  5. Step 5: Solve for x
    x = 7,890,921,773.70/101,600.63
  6. Step 6: Final answer
    x = 77,666.07

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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.