Home / 143,619.14-215,443.45-54,947.23

Finding the Fourth Proportional to 143,619.14, 215,443.45 and 54,947.23

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Solution

The fourth proportional to 143,619.14, 215,443.45 and 54,947.23 is: 82,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,619.14 : 215,443.45 = 54,947.23 : x
  2. Step 2: Convert to fraction form
    143,619.14/215,443.45 = 54,947.23/x
  3. Step 3: Cross multiply
    143,619.14x = 215,443.45 × 54,947.23
  4. Step 4: Simplify right side
    143,619.14x = 11,838,020,020.14
  5. Step 5: Solve for x
    x = 11,838,020,020.14/143,619.14
  6. Step 6: Final answer
    x = 82,426.48

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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.