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Finding the Fourth Proportional to 124,181.28, 171,170.40 and 83,882.40

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Solution

The fourth proportional to 124,181.28, 171,170.40 and 83,882.40 is: 115,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,181.28 : 171,170.40 = 83,882.40 : x
  2. Step 2: Convert to fraction form
    124,181.28/171,170.40 = 83,882.40/x
  3. Step 3: Cross multiply
    124,181.28x = 171,170.40 × 83,882.40
  4. Step 4: Simplify right side
    124,181.28x = 14,358,183,960.96
  5. Step 5: Solve for x
    x = 14,358,183,960.96/124,181.28
  6. Step 6: Final answer
    x = 115,622.77

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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.