Home / 148,831.83-205,389.54-80,849.61

Finding the Fourth Proportional to 148,831.83, 205,389.54 and 80,849.61

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Solution

The fourth proportional to 148,831.83, 205,389.54 and 80,849.61 is: 111,573.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,831.83 : 205,389.54 = 80,849.61 : x
  2. Step 2: Convert to fraction form
    148,831.83/205,389.54 = 80,849.61/x
  3. Step 3: Cross multiply
    148,831.83x = 205,389.54 × 80,849.61
  4. Step 4: Simplify right side
    148,831.83x = 16,605,664,207.08
  5. Step 5: Solve for x
    x = 16,605,664,207.08/148,831.83
  6. Step 6: Final answer
    x = 111,573.34

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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.