Home / 143,553.20-215,329.80-43,712.60

Finding the Fourth Proportional to 143,553.20, 215,329.80 and 43,712.60

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Solution

The fourth proportional to 143,553.20, 215,329.80 and 43,712.60 is: 65,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,553.20 : 215,329.80 = 43,712.60 : x
  2. Step 2: Convert to fraction form
    143,553.20/215,329.80 = 43,712.60/x
  3. Step 3: Cross multiply
    143,553.20x = 215,329.80 × 43,712.60
  4. Step 4: Simplify right side
    143,553.20x = 9,412,625,415.48
  5. Step 5: Solve for x
    x = 9,412,625,415.48/143,553.20
  6. Step 6: Final answer
    x = 65,568.90

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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.