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Finding the Fourth Proportional to 162,856.89, 243,924.44 and 125,139.33

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Solution

The fourth proportional to 162,856.89, 243,924.44 and 125,139.33 is: 187,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,856.89 : 243,924.44 = 125,139.33 : x
  2. Step 2: Convert to fraction form
    162,856.89/243,924.44 = 125,139.33/x
  3. Step 3: Cross multiply
    162,856.89x = 243,924.44 × 125,139.33
  4. Step 4: Simplify right side
    162,856.89x = 30,524,540,366.53
  5. Step 5: Solve for x
    x = 30,524,540,366.53/162,856.89
  6. Step 6: Final answer
    x = 187,431.68

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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.