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Finding the Fourth Proportional to 120,059.16, 179,963.58 and 45,127.68

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Solution

The fourth proportional to 120,059.16, 179,963.58 and 45,127.68 is: 67,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,059.16 : 179,963.58 = 45,127.68 : x
  2. Step 2: Convert to fraction form
    120,059.16/179,963.58 = 45,127.68/x
  3. Step 3: Cross multiply
    120,059.16x = 179,963.58 × 45,127.68
  4. Step 4: Simplify right side
    120,059.16x = 8,121,338,849.89
  5. Step 5: Solve for x
    x = 8,121,338,849.89/120,059.16
  6. Step 6: Final answer
    x = 67,644.48

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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.