Home / 121,432.10-182,148.15-119,099.30

Finding the Fourth Proportional to 121,432.10, 182,148.15 and 119,099.30

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Solution

The fourth proportional to 121,432.10, 182,148.15 and 119,099.30 is: 178,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.10 : 182,148.15 = 119,099.30 : x
  2. Step 2: Convert to fraction form
    121,432.10/182,148.15 = 119,099.30/x
  3. Step 3: Cross multiply
    121,432.10x = 182,148.15 × 119,099.30
  4. Step 4: Simplify right side
    121,432.10x = 21,693,717,161.30
  5. Step 5: Solve for x
    x = 21,693,717,161.30/121,432.10
  6. Step 6: Final answer
    x = 178,648.95

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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.