Home / 156,408.40-234,613.08-38,079.76

Finding the Fourth Proportional to 156,408.40, 234,613.08 and 38,079.76

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Solution

The fourth proportional to 156,408.40, 234,613.08 and 38,079.76 is: 57,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,408.40 : 234,613.08 = 38,079.76 : x
  2. Step 2: Convert to fraction form
    156,408.40/234,613.08 = 38,079.76/x
  3. Step 3: Cross multiply
    156,408.40x = 234,613.08 × 38,079.76
  4. Step 4: Simplify right side
    156,408.40x = 8,934,009,779.26
  5. Step 5: Solve for x
    x = 8,934,009,779.26/156,408.40
  6. Step 6: Final answer
    x = 57,119.76

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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.