Home / 135,972.32-187,641.44-75,542.72

Finding the Fourth Proportional to 135,972.32, 187,641.44 and 75,542.72

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Solution

The fourth proportional to 135,972.32, 187,641.44 and 75,542.72 is: 104,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,972.32 : 187,641.44 = 75,542.72 : x
  2. Step 2: Convert to fraction form
    135,972.32/187,641.44 = 75,542.72/x
  3. Step 3: Cross multiply
    135,972.32x = 187,641.44 × 75,542.72
  4. Step 4: Simplify right side
    135,972.32x = 14,174,944,762.32
  5. Step 5: Solve for x
    x = 14,174,944,762.32/135,972.32
  6. Step 6: Final answer
    x = 104,248.75

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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.