Home / 215,133.04-322,594.92-129,831.80

Finding the Fourth Proportional to 215,133.04, 322,594.92 and 129,831.80

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Solution

The fourth proportional to 215,133.04, 322,594.92 and 129,831.80 is: 194,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,133.04 : 322,594.92 = 129,831.80 : x
  2. Step 2: Convert to fraction form
    215,133.04/322,594.92 = 129,831.80/x
  3. Step 3: Cross multiply
    215,133.04x = 322,594.92 × 129,831.80
  4. Step 4: Simplify right side
    215,133.04x = 41,883,079,134.46
  5. Step 5: Solve for x
    x = 41,883,079,134.46/215,133.04
  6. Step 6: Final answer
    x = 194,684.55

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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.