Home / 118,209.92-163,142.24-72,296.42

Finding the Fourth Proportional to 118,209.92, 163,142.24 and 72,296.42

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Solution

The fourth proportional to 118,209.92, 163,142.24 and 72,296.42 is: 99,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,209.92 : 163,142.24 = 72,296.42 : x
  2. Step 2: Convert to fraction form
    118,209.92/163,142.24 = 72,296.42/x
  3. Step 3: Cross multiply
    118,209.92x = 163,142.24 × 72,296.42
  4. Step 4: Simplify right side
    118,209.92x = 11,794,598,725.59
  5. Step 5: Solve for x
    x = 11,794,598,725.59/118,209.92
  6. Step 6: Final answer
    x = 99,776.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.