Home / 103,997.20-143,515.66-56,250.42

Finding the Fourth Proportional to 103,997.20, 143,515.66 and 56,250.42

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Solution

The fourth proportional to 103,997.20, 143,515.66 and 56,250.42 is: 77,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,997.20 : 143,515.66 = 56,250.42 : x
  2. Step 2: Convert to fraction form
    103,997.20/143,515.66 = 56,250.42/x
  3. Step 3: Cross multiply
    103,997.20x = 143,515.66 × 56,250.42
  4. Step 4: Simplify right side
    103,997.20x = 8,072,816,151.58
  5. Step 5: Solve for x
    x = 8,072,816,151.58/103,997.20
  6. Step 6: Final answer
    x = 77,625.32

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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.