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Finding the Fourth Proportional to 163,015.71, 224,961.08 and 91,395.69

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Solution

The fourth proportional to 163,015.71, 224,961.08 and 91,395.69 is: 126,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,015.71 : 224,961.08 = 91,395.69 : x
  2. Step 2: Convert to fraction form
    163,015.71/224,961.08 = 91,395.69/x
  3. Step 3: Cross multiply
    163,015.71x = 224,961.08 × 91,395.69
  4. Step 4: Simplify right side
    163,015.71x = 20,560,472,672.77
  5. Step 5: Solve for x
    x = 20,560,472,672.77/163,015.71
  6. Step 6: Final answer
    x = 126,125.71

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1.5x scale

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.