Home / 156,979.90-235,469.85-103,835.80

Finding the Fourth Proportional to 156,979.90, 235,469.85 and 103,835.80

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Solution

The fourth proportional to 156,979.90, 235,469.85 and 103,835.80 is: 155,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.90 : 235,469.85 = 103,835.80 : x
  2. Step 2: Convert to fraction form
    156,979.90/235,469.85 = 103,835.80/x
  3. Step 3: Cross multiply
    156,979.90x = 235,469.85 × 103,835.80
  4. Step 4: Simplify right side
    156,979.90x = 24,450,200,250.63
  5. Step 5: Solve for x
    x = 24,450,200,250.63/156,979.90
  6. Step 6: Final answer
    x = 155,753.70

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1.5x scale

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.