Home / 136,545.74-188,433.52-79,196.12

Finding the Fourth Proportional to 136,545.74, 188,433.52 and 79,196.12

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Solution

The fourth proportional to 136,545.74, 188,433.52 and 79,196.12 is: 109,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,545.74 : 188,433.52 = 79,196.12 : x
  2. Step 2: Convert to fraction form
    136,545.74/188,433.52 = 79,196.12/x
  3. Step 3: Cross multiply
    136,545.74x = 188,433.52 × 79,196.12
  4. Step 4: Simplify right side
    136,545.74x = 14,923,203,661.94
  5. Step 5: Solve for x
    x = 14,923,203,661.94/136,545.74
  6. Step 6: Final answer
    x = 109,290.88

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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.