Home / 187,076.18-280,439.31-68,715.74

Finding the Fourth Proportional to 187,076.18, 280,439.31 and 68,715.74

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Solution

The fourth proportional to 187,076.18, 280,439.31 and 68,715.74 is: 103,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,076.18 : 280,439.31 = 68,715.74 : x
  2. Step 2: Convert to fraction form
    187,076.18/280,439.31 = 68,715.74/x
  3. Step 3: Cross multiply
    187,076.18x = 280,439.31 × 68,715.74
  4. Step 4: Simplify right side
    187,076.18x = 19,270,595,670.52
  5. Step 5: Solve for x
    x = 19,270,595,670.52/187,076.18
  6. Step 6: Final answer
    x = 103,009.35

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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.