Home / 136,472.32-188,345.68-76,052.80

Finding the Fourth Proportional to 136,472.32, 188,345.68 and 76,052.80

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Solution

The fourth proportional to 136,472.32, 188,345.68 and 76,052.80 is: 104,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,472.32 : 188,345.68 = 76,052.80 : x
  2. Step 2: Convert to fraction form
    136,472.32/188,345.68 = 76,052.80/x
  3. Step 3: Cross multiply
    136,472.32x = 188,345.68 × 76,052.80
  4. Step 4: Simplify right side
    136,472.32x = 14,324,216,331.90
  5. Step 5: Solve for x
    x = 14,324,216,331.90/136,472.32
  6. Step 6: Final answer
    x = 104,960.60

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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.