Home / 102,279.20-141,146.88-57,567.20

Finding the Fourth Proportional to 102,279.20, 141,146.88 and 57,567.20

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Solution

The fourth proportional to 102,279.20, 141,146.88 and 57,567.20 is: 79,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,279.20 : 141,146.88 = 57,567.20 : x
  2. Step 2: Convert to fraction form
    102,279.20/141,146.88 = 57,567.20/x
  3. Step 3: Cross multiply
    102,279.20x = 141,146.88 × 57,567.20
  4. Step 4: Simplify right side
    102,279.20x = 8,125,430,670.34
  5. Step 5: Solve for x
    x = 8,125,430,670.34/102,279.20
  6. Step 6: Final answer
    x = 79,443.63

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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.