Home / 112,170.96-154,640.88-89,586

Finding the Fourth Proportional to 112,170.96, 154,640.88 and 89,586

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Solution

The fourth proportional to 112,170.96, 154,640.88 and 89,586 is: 123,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,170.96 : 154,640.88 = 89,586 : x
  2. Step 2: Convert to fraction form
    112,170.96/154,640.88 = 89,586/x
  3. Step 3: Cross multiply
    112,170.96x = 154,640.88 × 89,586
  4. Step 4: Simplify right side
    112,170.96x = 13,853,657,875.68
  5. Step 5: Solve for x
    x = 13,853,657,875.68/112,170.96
  6. Step 6: Final answer
    x = 123,504.85

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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.