Home / 131,337.10-197,188.12-91,261.69

Finding the Fourth Proportional to 131,337.10, 197,188.12 and 91,261.69

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Solution

The fourth proportional to 131,337.10, 197,188.12 and 91,261.69 is: 137,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,337.10 : 197,188.12 = 91,261.69 : x
  2. Step 2: Convert to fraction form
    131,337.10/197,188.12 = 91,261.69/x
  3. Step 3: Cross multiply
    131,337.10x = 197,188.12 × 91,261.69
  4. Step 4: Simplify right side
    131,337.10x = 17,995,720,700.23
  5. Step 5: Solve for x
    x = 17,995,720,700.23/131,337.10
  6. Step 6: Final answer
    x = 137,019.33

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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.