Home / 237,143.78-327,260.99-129,711.45

Finding the Fourth Proportional to 237,143.78, 327,260.99 and 129,711.45

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Solution

The fourth proportional to 237,143.78, 327,260.99 and 129,711.45 is: 179,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,143.78 : 327,260.99 = 129,711.45 : x
  2. Step 2: Convert to fraction form
    237,143.78/327,260.99 = 129,711.45/x
  3. Step 3: Cross multiply
    237,143.78x = 327,260.99 × 129,711.45
  4. Step 4: Simplify right side
    237,143.78x = 42,449,497,541.34
  5. Step 5: Solve for x
    x = 42,449,497,541.34/237,143.78
  6. Step 6: Final answer
    x = 179,003.21

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1.5x scale

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.