Home / 121,432.52-182,148.78-38,333

Finding the Fourth Proportional to 121,432.52, 182,148.78 and 38,333

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Solution

The fourth proportional to 121,432.52, 182,148.78 and 38,333 is: 57,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.52 : 182,148.78 = 38,333 : x
  2. Step 2: Convert to fraction form
    121,432.52/182,148.78 = 38,333/x
  3. Step 3: Cross multiply
    121,432.52x = 182,148.78 × 38,333
  4. Step 4: Simplify right side
    121,432.52x = 6,982,309,183.74
  5. Step 5: Solve for x
    x = 6,982,309,183.74/121,432.52
  6. Step 6: Final answer
    x = 57,499.50

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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.