Home / 187,211.10-280,817.85-74,900.70

Finding the Fourth Proportional to 187,211.10, 280,817.85 and 74,900.70

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Solution

The fourth proportional to 187,211.10, 280,817.85 and 74,900.70 is: 112,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,211.10 : 280,817.85 = 74,900.70 : x
  2. Step 2: Convert to fraction form
    187,211.10/280,817.85 = 74,900.70/x
  3. Step 3: Cross multiply
    187,211.10x = 280,817.85 × 74,900.70
  4. Step 4: Simplify right side
    187,211.10x = 21,033,453,537.50
  5. Step 5: Solve for x
    x = 21,033,453,537.50/187,211.10
  6. Step 6: Final answer
    x = 112,351.53

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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.