Home / 120,443.46-180,626.91-112,581.19

Finding the Fourth Proportional to 120,443.46, 180,626.91 and 112,581.19

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Solution

The fourth proportional to 120,443.46, 180,626.91 and 112,581.19 is: 168,836.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,443.46 : 180,626.91 = 112,581.19 : x
  2. Step 2: Convert to fraction form
    120,443.46/180,626.91 = 112,581.19/x
  3. Step 3: Cross multiply
    120,443.46x = 180,626.91 × 112,581.19
  4. Step 4: Simplify right side
    120,443.46x = 20,335,192,473.82
  5. Step 5: Solve for x
    x = 20,335,192,473.82/120,443.46
  6. Step 6: Final answer
    x = 168,836.00

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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.