Home / 143,831.79-215,747.50-38,650.77

Finding the Fourth Proportional to 143,831.79, 215,747.50 and 38,650.77

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Solution

The fourth proportional to 143,831.79, 215,747.50 and 38,650.77 is: 57,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,831.79 : 215,747.50 = 38,650.77 : x
  2. Step 2: Convert to fraction form
    143,831.79/215,747.50 = 38,650.77/x
  3. Step 3: Cross multiply
    143,831.79x = 215,747.50 × 38,650.77
  4. Step 4: Simplify right side
    143,831.79x = 8,338,805,728.58
  5. Step 5: Solve for x
    x = 8,338,805,728.58/143,831.79
  6. Step 6: Final answer
    x = 57,976.10

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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.