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Finding the Fourth Proportional to 125,244.30, 172,922.67 and 87,530.70

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Solution

The fourth proportional to 125,244.30, 172,922.67 and 87,530.70 is: 120,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,244.30 : 172,922.67 = 87,530.70 : x
  2. Step 2: Convert to fraction form
    125,244.30/172,922.67 = 87,530.70/x
  3. Step 3: Cross multiply
    125,244.30x = 172,922.67 × 87,530.70
  4. Step 4: Simplify right side
    125,244.30x = 15,136,042,350.97
  5. Step 5: Solve for x
    x = 15,136,042,350.97/125,244.30
  6. Step 6: Final answer
    x = 120,852.15

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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.