Home / 131,455.17-181,195.62-102,724.91

Finding the Fourth Proportional to 131,455.17, 181,195.62 and 102,724.91

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Solution

The fourth proportional to 131,455.17, 181,195.62 and 102,724.91 is: 141,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,455.17 : 181,195.62 = 102,724.91 : x
  2. Step 2: Convert to fraction form
    131,455.17/181,195.62 = 102,724.91/x
  3. Step 3: Cross multiply
    131,455.17x = 181,195.62 × 102,724.91
  4. Step 4: Simplify right side
    131,455.17x = 18,613,302,850.92
  5. Step 5: Solve for x
    x = 18,613,302,850.92/131,455.17
  6. Step 6: Final answer
    x = 141,594.30

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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.