Home / 102,620.30-153,930.45-92,122.70

Finding the Fourth Proportional to 102,620.30, 153,930.45 and 92,122.70

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Solution

The fourth proportional to 102,620.30, 153,930.45 and 92,122.70 is: 138,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,620.30 : 153,930.45 = 92,122.70 : x
  2. Step 2: Convert to fraction form
    102,620.30/153,930.45 = 92,122.70/x
  3. Step 3: Cross multiply
    102,620.30x = 153,930.45 × 92,122.70
  4. Step 4: Simplify right side
    102,620.30x = 14,180,488,666.22
  5. Step 5: Solve for x
    x = 14,180,488,666.22/102,620.30
  6. Step 6: Final answer
    x = 138,184.05

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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.