Home / 166,831.20-250,127.91-78,036.30

Finding the Fourth Proportional to 166,831.20, 250,127.91 and 78,036.30

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Solution

The fourth proportional to 166,831.20, 250,127.91 and 78,036.30 is: 116,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,831.20 : 250,127.91 = 78,036.30 : x
  2. Step 2: Convert to fraction form
    166,831.20/250,127.91 = 78,036.30/x
  3. Step 3: Cross multiply
    166,831.20x = 250,127.91 × 78,036.30
  4. Step 4: Simplify right side
    166,831.20x = 19,519,056,623.13
  5. Step 5: Solve for x
    x = 19,519,056,623.13/166,831.20
  6. Step 6: Final answer
    x = 116,998.84

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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.