Home / 156,144.39-234,181.55-71,823.57

Finding the Fourth Proportional to 156,144.39, 234,181.55 and 71,823.57

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Solution

The fourth proportional to 156,144.39, 234,181.55 and 71,823.57 is: 107,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,144.39 : 234,181.55 = 71,823.57 : x
  2. Step 2: Convert to fraction form
    156,144.39/234,181.55 = 71,823.57/x
  3. Step 3: Cross multiply
    156,144.39x = 234,181.55 × 71,823.57
  4. Step 4: Simplify right side
    156,144.39x = 16,819,754,590.02
  5. Step 5: Solve for x
    x = 16,819,754,590.02/156,144.39
  6. Step 6: Final answer
    x = 107,719.24

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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.