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Finding the Fourth Proportional to 136,117.80, 204,176.70 and 83,556.90

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Solution

The fourth proportional to 136,117.80, 204,176.70 and 83,556.90 is: 125,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.80 : 204,176.70 = 83,556.90 : x
  2. Step 2: Convert to fraction form
    136,117.80/204,176.70 = 83,556.90/x
  3. Step 3: Cross multiply
    136,117.80x = 204,176.70 × 83,556.90
  4. Step 4: Simplify right side
    136,117.80x = 17,060,372,104.23
  5. Step 5: Solve for x
    x = 17,060,372,104.23/136,117.80
  6. Step 6: Final answer
    x = 125,335.35

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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.