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Finding the Fourth Proportional to 121,572.30, 182,272.05 and 55,044.30

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Solution

The fourth proportional to 121,572.30, 182,272.05 and 55,044.30 is: 82,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,572.30 : 182,272.05 = 55,044.30 : x
  2. Step 2: Convert to fraction form
    121,572.30/182,272.05 = 55,044.30/x
  3. Step 3: Cross multiply
    121,572.30x = 182,272.05 × 55,044.30
  4. Step 4: Simplify right side
    121,572.30x = 10,033,037,401.82
  5. Step 5: Solve for x
    x = 10,033,037,401.82/121,572.30
  6. Step 6: Final answer
    x = 82,527.33

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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.