Home / 156,748.35-235,122.53-112,789.65

Finding the Fourth Proportional to 156,748.35, 235,122.53 and 112,789.65

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Solution

The fourth proportional to 156,748.35, 235,122.53 and 112,789.65 is: 169,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.35 : 235,122.53 = 112,789.65 : x
  2. Step 2: Convert to fraction form
    156,748.35/235,122.53 = 112,789.65/x
  3. Step 3: Cross multiply
    156,748.35x = 235,122.53 × 112,789.65
  4. Step 4: Simplify right side
    156,748.35x = 26,519,387,301.87
  5. Step 5: Solve for x
    x = 26,519,387,301.87/156,748.35
  6. Step 6: Final answer
    x = 169,184.48

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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.