Home / 88,367.13-133,031.34-80,520.21

Finding the Fourth Proportional to 88,367.13, 133,031.34 and 80,520.21

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Solution

The fourth proportional to 88,367.13, 133,031.34 and 80,520.21 is: 121,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,367.13 : 133,031.34 = 80,520.21 : x
  2. Step 2: Convert to fraction form
    88,367.13/133,031.34 = 80,520.21/x
  3. Step 3: Cross multiply
    88,367.13x = 133,031.34 × 80,520.21
  4. Step 4: Simplify right side
    88,367.13x = 10,711,711,433.38
  5. Step 5: Solve for x
    x = 10,711,711,433.38/88,367.13
  6. Step 6: Final answer
    x = 121,218.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.