Home / 172,034.03-258,135.59-77,331.13

Finding the Fourth Proportional to 172,034.03, 258,135.59 and 77,331.13

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Solution

The fourth proportional to 172,034.03, 258,135.59 and 77,331.13 is: 116,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,034.03 : 258,135.59 = 77,331.13 : x
  2. Step 2: Convert to fraction form
    172,034.03/258,135.59 = 77,331.13/x
  3. Step 3: Cross multiply
    172,034.03x = 258,135.59 × 77,331.13
  4. Step 4: Simplify right side
    172,034.03x = 19,961,916,867.92
  5. Step 5: Solve for x
    x = 19,961,916,867.92/172,034.03
  6. Step 6: Final answer
    x = 116,034.70

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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.