Home / 126,981.90-190,504.55-89,614.95

Finding the Fourth Proportional to 126,981.90, 190,504.55 and 89,614.95

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Solution

The fourth proportional to 126,981.90, 190,504.55 and 89,614.95 is: 134,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,981.90 : 190,504.55 = 89,614.95 : x
  2. Step 2: Convert to fraction form
    126,981.90/190,504.55 = 89,614.95/x
  3. Step 3: Cross multiply
    126,981.90x = 190,504.55 × 89,614.95
  4. Step 4: Simplify right side
    126,981.90x = 17,072,055,470.80
  5. Step 5: Solve for x
    x = 17,072,055,470.80/126,981.90
  6. Step 6: Final answer
    x = 134,444.80

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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.