Home / 94,778.20-142,124.10-42,160.60

Finding the Fourth Proportional to 94,778.20, 142,124.10 and 42,160.60

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Solution

The fourth proportional to 94,778.20, 142,124.10 and 42,160.60 is: 63,221.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,778.20 : 142,124.10 = 42,160.60 : x
  2. Step 2: Convert to fraction form
    94,778.20/142,124.10 = 42,160.60/x
  3. Step 3: Cross multiply
    94,778.20x = 142,124.10 × 42,160.60
  4. Step 4: Simplify right side
    94,778.20x = 5,992,037,330.46
  5. Step 5: Solve for x
    x = 5,992,037,330.46/94,778.20
  6. Step 6: Final answer
    x = 63,221.68

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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.