Home / 131,470.83-181,512.90-101,199.24

Finding the Fourth Proportional to 131,470.83, 181,512.90 and 101,199.24

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Solution

The fourth proportional to 131,470.83, 181,512.90 and 101,199.24 is: 139,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,470.83 : 181,512.90 = 101,199.24 : x
  2. Step 2: Convert to fraction form
    131,470.83/181,512.90 = 101,199.24/x
  3. Step 3: Cross multiply
    131,470.83x = 181,512.90 × 101,199.24
  4. Step 4: Simplify right side
    131,470.83x = 18,368,967,530.20
  5. Step 5: Solve for x
    x = 18,368,967,530.20/131,470.83
  6. Step 6: Final answer
    x = 139,718.96

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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.