Home / 156,979.90-235,469.85-38,650.30

Finding the Fourth Proportional to 156,979.90, 235,469.85 and 38,650.30

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Solution

The fourth proportional to 156,979.90, 235,469.85 and 38,650.30 is: 57,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.90 : 235,469.85 = 38,650.30 : x
  2. Step 2: Convert to fraction form
    156,979.90/235,469.85 = 38,650.30/x
  3. Step 3: Cross multiply
    156,979.90x = 235,469.85 × 38,650.30
  4. Step 4: Simplify right side
    156,979.90x = 9,100,980,343.46
  5. Step 5: Solve for x
    x = 9,100,980,343.46/156,979.90
  6. Step 6: Final answer
    x = 57,975.45

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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.