Home / 102,388.18-141,296.35-57,069.04

Finding the Fourth Proportional to 102,388.18, 141,296.35 and 57,069.04

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Solution

The fourth proportional to 102,388.18, 141,296.35 and 57,069.04 is: 78,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,388.18 : 141,296.35 = 57,069.04 : x
  2. Step 2: Convert to fraction form
    102,388.18/141,296.35 = 57,069.04/x
  3. Step 3: Cross multiply
    102,388.18x = 141,296.35 × 57,069.04
  4. Step 4: Simplify right side
    102,388.18x = 8,063,646,670.94
  5. Step 5: Solve for x
    x = 8,063,646,670.94/102,388.18
  6. Step 6: Final answer
    x = 78,755.64

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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.