Home / 149,411.12-206,217.94-89,017.14

Finding the Fourth Proportional to 149,411.12, 206,217.94 and 89,017.14

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Solution

The fourth proportional to 149,411.12, 206,217.94 and 89,017.14 is: 122,861.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,411.12 : 206,217.94 = 89,017.14 : x
  2. Step 2: Convert to fraction form
    149,411.12/206,217.94 = 89,017.14/x
  3. Step 3: Cross multiply
    149,411.12x = 206,217.94 × 89,017.14
  4. Step 4: Simplify right side
    149,411.12x = 18,356,931,235.49
  5. Step 5: Solve for x
    x = 18,356,931,235.49/149,411.12
  6. Step 6: Final answer
    x = 122,861.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.