Home / 100,823.78-151,217.30-29,731.70

Finding the Fourth Proportional to 100,823.78, 151,217.30 and 29,731.70

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Solution

The fourth proportional to 100,823.78, 151,217.30 and 29,731.70 is: 44,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,823.78 : 151,217.30 = 29,731.70 : x
  2. Step 2: Convert to fraction form
    100,823.78/151,217.30 = 29,731.70/x
  3. Step 3: Cross multiply
    100,823.78x = 151,217.30 × 29,731.70
  4. Step 4: Simplify right side
    100,823.78x = 4,495,947,398.41
  5. Step 5: Solve for x
    x = 4,495,947,398.41/100,823.78
  6. Step 6: Final answer
    x = 44,592.13

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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.