Home / 112,081.20-154,523.28-92,889

Finding the Fourth Proportional to 112,081.20, 154,523.28 and 92,889

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Solution

The fourth proportional to 112,081.20, 154,523.28 and 92,889 is: 128,063.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,081.20 : 154,523.28 = 92,889 : x
  2. Step 2: Convert to fraction form
    112,081.20/154,523.28 = 92,889/x
  3. Step 3: Cross multiply
    112,081.20x = 154,523.28 × 92,889
  4. Step 4: Simplify right side
    112,081.20x = 14,353,512,955.92
  5. Step 5: Solve for x
    x = 14,353,512,955.92/112,081.20
  6. Step 6: Final answer
    x = 128,063.52

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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.