Home / 156,748.30-235,122.45-38,420.80

Finding the Fourth Proportional to 156,748.30, 235,122.45 and 38,420.80

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Solution

The fourth proportional to 156,748.30, 235,122.45 and 38,420.80 is: 57,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.30 : 235,122.45 = 38,420.80 : x
  2. Step 2: Convert to fraction form
    156,748.30/235,122.45 = 38,420.80/x
  3. Step 3: Cross multiply
    156,748.30x = 235,122.45 × 38,420.80
  4. Step 4: Simplify right side
    156,748.30x = 9,033,592,626.96
  5. Step 5: Solve for x
    x = 9,033,592,626.96/156,748.30
  6. Step 6: Final answer
    x = 57,631.20

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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.