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Finding the Fourth Proportional to 101,606.62, 140,285.63 and 63,424.32

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Solution

The fourth proportional to 101,606.62, 140,285.63 and 63,424.32 is: 87,568.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,606.62 : 140,285.63 = 63,424.32 : x
  2. Step 2: Convert to fraction form
    101,606.62/140,285.63 = 63,424.32/x
  3. Step 3: Cross multiply
    101,606.62x = 140,285.63 × 63,424.32
  4. Step 4: Simplify right side
    101,606.62x = 8,897,520,688.52
  5. Step 5: Solve for x
    x = 8,897,520,688.52/101,606.62
  6. Step 6: Final answer
    x = 87,568.32

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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.