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Finding the Fourth Proportional to 137,625.50, 189,923.51 and 80,304.23

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Solution

The fourth proportional to 137,625.50, 189,923.51 and 80,304.23 is: 110,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,625.50 : 189,923.51 = 80,304.23 : x
  2. Step 2: Convert to fraction form
    137,625.50/189,923.51 = 80,304.23/x
  3. Step 3: Cross multiply
    137,625.50x = 189,923.51 × 80,304.23
  4. Step 4: Simplify right side
    137,625.50x = 15,251,660,827.93
  5. Step 5: Solve for x
    x = 15,251,660,827.93/137,625.50
  6. Step 6: Final answer
    x = 110,820.02

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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.