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Finding the Fourth Proportional to 162,908.38, 224,812.90 and 91,288.38

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Solution

The fourth proportional to 162,908.38, 224,812.90 and 91,288.38 is: 125,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,908.38 : 224,812.90 = 91,288.38 : x
  2. Step 2: Convert to fraction form
    162,908.38/224,812.90 = 91,288.38/x
  3. Step 3: Cross multiply
    162,908.38x = 224,812.90 × 91,288.38
  4. Step 4: Simplify right side
    162,908.38x = 20,522,805,444.10
  5. Step 5: Solve for x
    x = 20,522,805,444.10/162,908.38
  6. Step 6: Final answer
    x = 125,977.59

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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.