Home / 156,748.80-235,123.20-38,421.30

Finding the Fourth Proportional to 156,748.80, 235,123.20 and 38,421.30

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Solution

The fourth proportional to 156,748.80, 235,123.20 and 38,421.30 is: 57,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.80 : 235,123.20 = 38,421.30 : x
  2. Step 2: Convert to fraction form
    156,748.80/235,123.20 = 38,421.30/x
  3. Step 3: Cross multiply
    156,748.80x = 235,123.20 × 38,421.30
  4. Step 4: Simplify right side
    156,748.80x = 9,033,739,004.16
  5. Step 5: Solve for x
    x = 9,033,739,004.16/156,748.80
  6. Step 6: Final answer
    x = 57,631.95

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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.