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Finding the Fourth Proportional to 172,613.03, 258,919.02 and 77,732.12

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Solution

The fourth proportional to 172,613.03, 258,919.02 and 77,732.12 is: 116,597.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,613.03 : 258,919.02 = 77,732.12 : x
  2. Step 2: Convert to fraction form
    172,613.03/258,919.02 = 77,732.12/x
  3. Step 3: Cross multiply
    172,613.03x = 258,919.02 × 77,732.12
  4. Step 4: Simplify right side
    172,613.03x = 20,126,324,980.22
  5. Step 5: Solve for x
    x = 20,126,324,980.22/172,613.03
  6. Step 6: Final answer
    x = 116,597.95

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1.5x scale

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.