Home / 156,734.30-235,101.45-38,406.80

Finding the Fourth Proportional to 156,734.30, 235,101.45 and 38,406.80

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Solution

The fourth proportional to 156,734.30, 235,101.45 and 38,406.80 is: 57,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.30 : 235,101.45 = 38,406.80 : x
  2. Step 2: Convert to fraction form
    156,734.30/235,101.45 = 38,406.80/x
  3. Step 3: Cross multiply
    156,734.30x = 235,101.45 × 38,406.80
  4. Step 4: Simplify right side
    156,734.30x = 9,029,494,369.86
  5. Step 5: Solve for x
    x = 9,029,494,369.86/156,734.30
  6. Step 6: Final answer
    x = 57,610.20

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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.