Home / 252,981.68-379,729.29-126,712.40

Finding the Fourth Proportional to 252,981.68, 379,729.29 and 126,712.40

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Solution

The fourth proportional to 252,981.68, 379,729.29 and 126,712.40 is: 190,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,981.68 : 379,729.29 = 126,712.40 : x
  2. Step 2: Convert to fraction form
    252,981.68/379,729.29 = 126,712.40/x
  3. Step 3: Cross multiply
    252,981.68x = 379,729.29 × 126,712.40
  4. Step 4: Simplify right side
    252,981.68x = 48,116,407,153.99
  5. Step 5: Solve for x
    x = 48,116,407,153.99/252,981.68
  6. Step 6: Final answer
    x = 190,197.20

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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.