Home / 187,260.81-280,760.00-68,916.78

Finding the Fourth Proportional to 187,260.81, 280,760.00 and 68,916.78

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Solution

The fourth proportional to 187,260.81, 280,760.00 and 68,916.78 is: 103,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,260.81 : 280,760.00 = 68,916.78 : x
  2. Step 2: Convert to fraction form
    187,260.81/280,760.00 = 68,916.78/x
  3. Step 3: Cross multiply
    187,260.81x = 280,760.00 × 68,916.78
  4. Step 4: Simplify right side
    187,260.81x = 19,349,074,808.22
  5. Step 5: Solve for x
    x = 19,349,074,808.22/187,260.81
  6. Step 6: Final answer
    x = 103,326.88

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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.