Home / 115,278.20-172,917.30-91,950.20

Finding the Fourth Proportional to 115,278.20, 172,917.30 and 91,950.20

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Solution

The fourth proportional to 115,278.20, 172,917.30 and 91,950.20 is: 137,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,278.20 : 172,917.30 = 91,950.20 : x
  2. Step 2: Convert to fraction form
    115,278.20/172,917.30 = 91,950.20/x
  3. Step 3: Cross multiply
    115,278.20x = 172,917.30 × 91,950.20
  4. Step 4: Simplify right side
    115,278.20x = 15,899,780,318.46
  5. Step 5: Solve for x
    x = 15,899,780,318.46/115,278.20
  6. Step 6: Final answer
    x = 137,925.30

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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.