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Finding the Fourth Proportional to 80,053.79, 120,080.54 and 75,182.25

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Solution

The fourth proportional to 80,053.79, 120,080.54 and 75,182.25 is: 112,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,053.79 : 120,080.54 = 75,182.25 : x
  2. Step 2: Convert to fraction form
    80,053.79/120,080.54 = 75,182.25/x
  3. Step 3: Cross multiply
    80,053.79x = 120,080.54 × 75,182.25
  4. Step 4: Simplify right side
    80,053.79x = 9,027,924,802.50
  5. Step 5: Solve for x
    x = 9,027,924,802.50/80,053.79
  6. Step 6: Final answer
    x = 112,773.23

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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.