Home / 121,531.62-182,034.98-118,557.30

Finding the Fourth Proportional to 121,531.62, 182,034.98 and 118,557.30

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Solution

The fourth proportional to 121,531.62, 182,034.98 and 118,557.30 is: 177,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,531.62 : 182,034.98 = 118,557.30 : x
  2. Step 2: Convert to fraction form
    121,531.62/182,034.98 = 118,557.30/x
  3. Step 3: Cross multiply
    121,531.62x = 182,034.98 × 118,557.30
  4. Step 4: Simplify right side
    121,531.62x = 21,581,575,734.35
  5. Step 5: Solve for x
    x = 21,581,575,734.35/121,531.62
  6. Step 6: Final answer
    x = 177,579.92

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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.