Home / 156,979.90-235,469.85-109,740.70

Finding the Fourth Proportional to 156,979.90, 235,469.85 and 109,740.70

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Solution

The fourth proportional to 156,979.90, 235,469.85 and 109,740.70 is: 164,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.90 : 235,469.85 = 109,740.70 : x
  2. Step 2: Convert to fraction form
    156,979.90/235,469.85 = 109,740.70/x
  3. Step 3: Cross multiply
    156,979.90x = 235,469.85 × 109,740.70
  4. Step 4: Simplify right side
    156,979.90x = 25,840,626,167.90
  5. Step 5: Solve for x
    x = 25,840,626,167.90/156,979.90
  6. Step 6: Final answer
    x = 164,611.05

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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.