Home / 145,229.20-217,552.28-66,234.80

Finding the Fourth Proportional to 145,229.20, 217,552.28 and 66,234.80

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Solution

The fourth proportional to 145,229.20, 217,552.28 and 66,234.80 is: 99,219.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,229.20 : 217,552.28 = 66,234.80 : x
  2. Step 2: Convert to fraction form
    145,229.20/217,552.28 = 66,234.80/x
  3. Step 3: Cross multiply
    145,229.20x = 217,552.28 × 66,234.80
  4. Step 4: Simplify right side
    145,229.20x = 14,409,531,755.34
  5. Step 5: Solve for x
    x = 14,409,531,755.34/145,229.20
  6. Step 6: Final answer
    x = 99,219.25

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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.