Home / 156,147.40-234,186.03-71,826.57

Finding the Fourth Proportional to 156,147.40, 234,186.03 and 71,826.57

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Solution

The fourth proportional to 156,147.40, 234,186.03 and 71,826.57 is: 107,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,147.40 : 234,186.03 = 71,826.57 : x
  2. Step 2: Convert to fraction form
    156,147.40/234,186.03 = 71,826.57/x
  3. Step 3: Cross multiply
    156,147.40x = 234,186.03 × 71,826.57
  4. Step 4: Simplify right side
    156,147.40x = 16,820,779,276.82
  5. Step 5: Solve for x
    x = 16,820,779,276.82/156,147.40
  6. Step 6: Final answer
    x = 107,723.72

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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.