Home / 91,305.20-136,958.16-91,173.80

Finding the Fourth Proportional to 91,305.20, 136,958.16 and 91,173.80

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Solution

The fourth proportional to 91,305.20, 136,958.16 and 91,173.80 is: 136,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,305.20 : 136,958.16 = 91,173.80 : x
  2. Step 2: Convert to fraction form
    91,305.20/136,958.16 = 91,173.80/x
  3. Step 3: Cross multiply
    91,305.20x = 136,958.16 × 91,173.80
  4. Step 4: Simplify right side
    91,305.20x = 12,486,995,888.21
  5. Step 5: Solve for x
    x = 12,486,995,888.21/91,305.20
  6. Step 6: Final answer
    x = 136,761.06

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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.