Home / 131,238.56-181,165.20-88,242.98

Finding the Fourth Proportional to 131,238.56, 181,165.20 and 88,242.98

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Solution

The fourth proportional to 131,238.56, 181,165.20 and 88,242.98 is: 121,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,238.56 : 181,165.20 = 88,242.98 : x
  2. Step 2: Convert to fraction form
    131,238.56/181,165.20 = 88,242.98/x
  3. Step 3: Cross multiply
    131,238.56x = 181,165.20 × 88,242.98
  4. Step 4: Simplify right side
    131,238.56x = 15,986,556,007.65
  5. Step 5: Solve for x
    x = 15,986,556,007.65/131,238.56
  6. Step 6: Final answer
    x = 121,812.95

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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.