Home / 102,011.05-140,752.19-61,723.81

Finding the Fourth Proportional to 102,011.05, 140,752.19 and 61,723.81

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Solution

The fourth proportional to 102,011.05, 140,752.19 and 61,723.81 is: 85,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,011.05 : 140,752.19 = 61,723.81 : x
  2. Step 2: Convert to fraction form
    102,011.05/140,752.19 = 61,723.81/x
  3. Step 3: Cross multiply
    102,011.05x = 140,752.19 × 61,723.81
  4. Step 4: Simplify right side
    102,011.05x = 8,687,761,124.02
  5. Step 5: Solve for x
    x = 8,687,761,124.02/102,011.05
  6. Step 6: Final answer
    x = 85,164.90

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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.