Home / 121,728.52-182,592.72-45,841.36

Finding the Fourth Proportional to 121,728.52, 182,592.72 and 45,841.36

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Solution

The fourth proportional to 121,728.52, 182,592.72 and 45,841.36 is: 68,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,728.52 : 182,592.72 = 45,841.36 : x
  2. Step 2: Convert to fraction form
    121,728.52/182,592.72 = 45,841.36/x
  3. Step 3: Cross multiply
    121,728.52x = 182,592.72 × 45,841.36
  4. Step 4: Simplify right side
    121,728.52x = 8,370,298,610.90
  5. Step 5: Solve for x
    x = 8,370,298,610.90/121,728.52
  6. Step 6: Final answer
    x = 68,762.02

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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.