Home / 156,507.91-234,734.60-72,260.89

Finding the Fourth Proportional to 156,507.91, 234,734.60 and 72,260.89

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Solution

The fourth proportional to 156,507.91, 234,734.60 and 72,260.89 is: 108,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,507.91 : 234,734.60 = 72,260.89 : x
  2. Step 2: Convert to fraction form
    156,507.91/234,734.60 = 72,260.89/x
  3. Step 3: Cross multiply
    156,507.91x = 234,734.60 × 72,260.89
  4. Step 4: Simplify right side
    156,507.91x = 16,962,130,748.49
  5. Step 5: Solve for x
    x = 16,962,130,748.49/156,507.91
  6. Step 6: Final answer
    x = 108,378.74

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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.