Home / 103,451.10-142,751.94-58,121.88

Finding the Fourth Proportional to 103,451.10, 142,751.94 and 58,121.88

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Solution

The fourth proportional to 103,451.10, 142,751.94 and 58,121.88 is: 80,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,451.10 : 142,751.94 = 58,121.88 : x
  2. Step 2: Convert to fraction form
    103,451.10/142,751.94 = 58,121.88/x
  3. Step 3: Cross multiply
    103,451.10x = 142,751.94 × 58,121.88
  4. Step 4: Simplify right side
    103,451.10x = 8,297,011,126.45
  5. Step 5: Solve for x
    x = 8,297,011,126.45/103,451.10
  6. Step 6: Final answer
    x = 80,202.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.