Home / 102,209.87-141,048.19-56,887.85

Finding the Fourth Proportional to 102,209.87, 141,048.19 and 56,887.85

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Solution

The fourth proportional to 102,209.87, 141,048.19 and 56,887.85 is: 78,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,209.87 : 141,048.19 = 56,887.85 : x
  2. Step 2: Convert to fraction form
    102,209.87/141,048.19 = 56,887.85/x
  3. Step 3: Cross multiply
    102,209.87x = 141,048.19 × 56,887.85
  4. Step 4: Simplify right side
    102,209.87x = 8,023,928,275.49
  5. Step 5: Solve for x
    x = 8,023,928,275.49/102,209.87
  6. Step 6: Final answer
    x = 78,504.44

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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.