Home / 143,544.50-215,177.04-68,645.21

Finding the Fourth Proportional to 143,544.50, 215,177.04 and 68,645.21

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Solution

The fourth proportional to 143,544.50, 215,177.04 and 68,645.21 is: 102,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544.50 : 215,177.04 = 68,645.21 : x
  2. Step 2: Convert to fraction form
    143,544.50/215,177.04 = 68,645.21/x
  3. Step 3: Cross multiply
    143,544.50x = 215,177.04 × 68,645.21
  4. Step 4: Simplify right side
    143,544.50x = 14,770,873,097.98
  5. Step 5: Solve for x
    x = 14,770,873,097.98/143,544.50
  6. Step 6: Final answer
    x = 102,901.00

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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.