Home / 103,720.10-155,234.55-95,425.70

Finding the Fourth Proportional to 103,720.10, 155,234.55 and 95,425.70

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Solution

The fourth proportional to 103,720.10, 155,234.55 and 95,425.70 is: 142,820.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,720.10 : 155,234.55 = 95,425.70 : x
  2. Step 2: Convert to fraction form
    103,720.10/155,234.55 = 95,425.70/x
  3. Step 3: Cross multiply
    103,720.10x = 155,234.55 × 95,425.70
  4. Step 4: Simplify right side
    103,720.10x = 14,813,365,597.94
  5. Step 5: Solve for x
    x = 14,813,365,597.94/103,720.10
  6. Step 6: Final answer
    x = 142,820.59

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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.