Home / 187,975.98-282,074.13-75,638.70

Finding the Fourth Proportional to 187,975.98, 282,074.13 and 75,638.70

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Solution

The fourth proportional to 187,975.98, 282,074.13 and 75,638.70 is: 113,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,975.98 : 282,074.13 = 75,638.70 : x
  2. Step 2: Convert to fraction form
    187,975.98/282,074.13 = 75,638.70/x
  3. Step 3: Cross multiply
    187,975.98x = 282,074.13 × 75,638.70
  4. Step 4: Simplify right side
    187,975.98x = 21,335,720,496.83
  5. Step 5: Solve for x
    x = 21,335,720,496.83/187,975.98
  6. Step 6: Final answer
    x = 113,502.38

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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.