Home / 156,750.30-235,125.45-38,422.80

Finding the Fourth Proportional to 156,750.30, 235,125.45 and 38,422.80

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Solution

The fourth proportional to 156,750.30, 235,125.45 and 38,422.80 is: 57,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.30 : 235,125.45 = 38,422.80 : x
  2. Step 2: Convert to fraction form
    156,750.30/235,125.45 = 38,422.80/x
  3. Step 3: Cross multiply
    156,750.30x = 235,125.45 × 38,422.80
  4. Step 4: Simplify right side
    156,750.30x = 9,034,178,140.26
  5. Step 5: Solve for x
    x = 9,034,178,140.26/156,750.30
  6. Step 6: Final answer
    x = 57,634.20

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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.