Home / 187,273.46-280,938.20-68,935.78

Finding the Fourth Proportional to 187,273.46, 280,938.20 and 68,935.78

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Solution

The fourth proportional to 187,273.46, 280,938.20 and 68,935.78 is: 103,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,273.46 : 280,938.20 = 68,935.78 : x
  2. Step 2: Convert to fraction form
    187,273.46/280,938.20 = 68,935.78/x
  3. Step 3: Cross multiply
    187,273.46x = 280,938.20 × 68,935.78
  4. Step 4: Simplify right side
    187,273.46x = 19,366,693,948.80
  5. Step 5: Solve for x
    x = 19,366,693,948.80/187,273.46
  6. Step 6: Final answer
    x = 103,413.98

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1.5x scale

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.