Home / 143,275.18-214,617.42-83,930.92

Finding the Fourth Proportional to 143,275.18, 214,617.42 and 83,930.92

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Solution

The fourth proportional to 143,275.18, 214,617.42 and 83,930.92 is: 125,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,275.18 : 214,617.42 = 83,930.92 : x
  2. Step 2: Convert to fraction form
    143,275.18/214,617.42 = 83,930.92/x
  3. Step 3: Cross multiply
    143,275.18x = 214,617.42 × 83,930.92
  4. Step 4: Simplify right side
    143,275.18x = 18,013,037,508.63
  5. Step 5: Solve for x
    x = 18,013,037,508.63/143,275.18
  6. Step 6: Final answer
    x = 125,723.36

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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.