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Finding the Fourth Proportional to 112,886.71, 168,997.88 and 75,353.68

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Solution

The fourth proportional to 112,886.71, 168,997.88 and 75,353.68 is: 112,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,886.71 : 168,997.88 = 75,353.68 : x
  2. Step 2: Convert to fraction form
    112,886.71/168,997.88 = 75,353.68/x
  3. Step 3: Cross multiply
    112,886.71x = 168,997.88 × 75,353.68
  4. Step 4: Simplify right side
    112,886.71x = 12,734,612,569.83
  5. Step 5: Solve for x
    x = 12,734,612,569.83/112,886.71
  6. Step 6: Final answer
    x = 112,808.79

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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.