Home / 103,942.92-143,442.30-56,197.20

Finding the Fourth Proportional to 103,942.92, 143,442.30 and 56,197.20

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Solution

The fourth proportional to 103,942.92, 143,442.30 and 56,197.20 is: 77,552.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,942.92 : 143,442.30 = 56,197.20 : x
  2. Step 2: Convert to fraction form
    103,942.92/143,442.30 = 56,197.20/x
  3. Step 3: Cross multiply
    103,942.92x = 143,442.30 × 56,197.20
  4. Step 4: Simplify right side
    103,942.92x = 8,061,055,621.56
  5. Step 5: Solve for x
    x = 8,061,055,621.56/103,942.92
  6. Step 6: Final answer
    x = 77,552.71

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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.