Home / 98,613.12-147,897.60-28,476.80

Finding the Fourth Proportional to 98,613.12, 147,897.60 and 28,476.80

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Solution

The fourth proportional to 98,613.12, 147,897.60 and 28,476.80 is: 42,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,613.12 : 147,897.60 = 28,476.80 : x
  2. Step 2: Convert to fraction form
    98,613.12/147,897.60 = 28,476.80/x
  3. Step 3: Cross multiply
    98,613.12x = 147,897.60 × 28,476.80
  4. Step 4: Simplify right side
    98,613.12x = 4,211,650,375.68
  5. Step 5: Solve for x
    x = 4,211,650,375.68/98,613.12
  6. Step 6: Final answer
    x = 42,708.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.