Home / 144,831.35-217,306.97-78,193.10

Finding the Fourth Proportional to 144,831.35, 217,306.97 and 78,193.10

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Solution

The fourth proportional to 144,831.35, 217,306.97 and 78,193.10 is: 117,322.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,831.35 : 217,306.97 = 78,193.10 : x
  2. Step 2: Convert to fraction form
    144,831.35/217,306.97 = 78,193.10/x
  3. Step 3: Cross multiply
    144,831.35x = 217,306.97 × 78,193.10
  4. Step 4: Simplify right side
    144,831.35x = 16,991,906,081.43
  5. Step 5: Solve for x
    x = 16,991,906,081.43/144,831.35
  6. Step 6: Final answer
    x = 117,322.01

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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.