Home / 149,831.55-206,771.98-81,849.65

Finding the Fourth Proportional to 149,831.55, 206,771.98 and 81,849.65

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Solution

The fourth proportional to 149,831.55, 206,771.98 and 81,849.65 is: 112,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,831.55 : 206,771.98 = 81,849.65 : x
  2. Step 2: Convert to fraction form
    149,831.55/206,771.98 = 81,849.65/x
  3. Step 3: Cross multiply
    149,831.55x = 206,771.98 × 81,849.65
  4. Step 4: Simplify right side
    149,831.55x = 16,924,213,158.95
  5. Step 5: Solve for x
    x = 16,924,213,158.95/149,831.55
  6. Step 6: Final answer
    x = 112,954.94

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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.