Home / 131,449.92-181,188.37-102,719.66

Finding the Fourth Proportional to 131,449.92, 181,188.37 and 102,719.66

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Solution

The fourth proportional to 131,449.92, 181,188.37 and 102,719.66 is: 141,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,449.92 : 181,188.37 = 102,719.66 : x
  2. Step 2: Convert to fraction form
    131,449.92/181,188.37 = 102,719.66/x
  3. Step 3: Cross multiply
    131,449.92x = 181,188.37 × 102,719.66
  4. Step 4: Simplify right side
    131,449.92x = 18,611,607,762.35
  5. Step 5: Solve for x
    x = 18,611,607,762.35/131,449.92
  6. Step 6: Final answer
    x = 141,587.06

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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.