Home / 106,613.20-147,128.50-58,869.54

Finding the Fourth Proportional to 106,613.20, 147,128.50 and 58,869.54

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Solution

The fourth proportional to 106,613.20, 147,128.50 and 58,869.54 is: 81,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,613.20 : 147,128.50 = 58,869.54 : x
  2. Step 2: Convert to fraction form
    106,613.20/147,128.50 = 58,869.54/x
  3. Step 3: Cross multiply
    106,613.20x = 147,128.50 × 58,869.54
  4. Step 4: Simplify right side
    106,613.20x = 8,661,387,115.89
  5. Step 5: Solve for x
    x = 8,661,387,115.89/106,613.20
  6. Step 6: Final answer
    x = 81,241.23

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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.