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Finding the Fourth Proportional to 173,875.80, 260,862.30 and 85,132.20

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Solution

The fourth proportional to 173,875.80, 260,862.30 and 85,132.20 is: 127,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,875.80 : 260,862.30 = 85,132.20 : x
  2. Step 2: Convert to fraction form
    173,875.80/260,862.30 = 85,132.20/x
  3. Step 3: Cross multiply
    173,875.80x = 260,862.30 × 85,132.20
  4. Step 4: Simplify right side
    173,875.80x = 22,207,781,496.06
  5. Step 5: Solve for x
    x = 22,207,781,496.06/173,875.80
  6. Step 6: Final answer
    x = 127,722.10

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1.5x scale

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.