Home / 107,640.24-148,503.42-67,338.70

Finding the Fourth Proportional to 107,640.24, 148,503.42 and 67,338.70

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Solution

The fourth proportional to 107,640.24, 148,503.42 and 67,338.70 is: 92,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,640.24 : 148,503.42 = 67,338.70 : x
  2. Step 2: Convert to fraction form
    107,640.24/148,503.42 = 67,338.70/x
  3. Step 3: Cross multiply
    107,640.24x = 148,503.42 × 67,338.70
  4. Step 4: Simplify right side
    107,640.24x = 10,000,027,248.35
  5. Step 5: Solve for x
    x = 10,000,027,248.35/107,640.24
  6. Step 6: Final answer
    x = 92,902.31

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1.5x scale

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.