Home / 149,929.20-206,910-86,276.52

Finding the Fourth Proportional to 149,929.20, 206,910 and 86,276.52

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Solution

The fourth proportional to 149,929.20, 206,910 and 86,276.52 is: 119,066.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,929.20 : 206,910 = 86,276.52 : x
  2. Step 2: Convert to fraction form
    149,929.20/206,910 = 86,276.52/x
  3. Step 3: Cross multiply
    149,929.20x = 206,910 × 86,276.52
  4. Step 4: Simplify right side
    149,929.20x = 17,851,474,753.20
  5. Step 5: Solve for x
    x = 17,851,474,753.20/149,929.20
  6. Step 6: Final answer
    x = 119,066.03

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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.