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Finding the Fourth Proportional to 143,113.96, 214,671.68 and 83,908.11

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Solution

The fourth proportional to 143,113.96, 214,671.68 and 83,908.11 is: 125,862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,113.96 : 214,671.68 = 83,908.11 : x
  2. Step 2: Convert to fraction form
    143,113.96/214,671.68 = 83,908.11/x
  3. Step 3: Cross multiply
    143,113.96x = 214,671.68 × 83,908.11
  4. Step 4: Simplify right side
    143,113.96x = 18,012,693,446.43
  5. Step 5: Solve for x
    x = 18,012,693,446.43/143,113.96
  6. Step 6: Final answer
    x = 125,862.59

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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.