Home / 143,122.12-214,689-36,508.84

Finding the Fourth Proportional to 143,122.12, 214,689 and 36,508.84

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Solution

The fourth proportional to 143,122.12, 214,689 and 36,508.84 is: 54,764.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,122.12 : 214,689 = 36,508.84 : x
  2. Step 2: Convert to fraction form
    143,122.12/214,689 = 36,508.84/x
  3. Step 3: Cross multiply
    143,122.12x = 214,689 × 36,508.84
  4. Step 4: Simplify right side
    143,122.12x = 7,838,046,350.76
  5. Step 5: Solve for x
    x = 7,838,046,350.76/143,122.12
  6. Step 6: Final answer
    x = 54,764.74

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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.