Home / 173,862.20-260,966.10-85,215.80

Finding the Fourth Proportional to 173,862.20, 260,966.10 and 85,215.80

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Solution

The fourth proportional to 173,862.20, 260,966.10 and 85,215.80 is: 127,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,862.20 : 260,966.10 = 85,215.80 : x
  2. Step 2: Convert to fraction form
    173,862.20/260,966.10 = 85,215.80/x
  3. Step 3: Cross multiply
    173,862.20x = 260,966.10 × 85,215.80
  4. Step 4: Simplify right side
    173,862.20x = 22,238,434,984.38
  5. Step 5: Solve for x
    x = 22,238,434,984.38/173,862.20
  6. Step 6: Final answer
    x = 127,908.40

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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.