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Finding the Fourth Proportional to 162,471.17, 224,231.09 and 90,855.20

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Solution

The fourth proportional to 162,471.17, 224,231.09 and 90,855.20 is: 125,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,471.17 : 224,231.09 = 90,855.20 : x
  2. Step 2: Convert to fraction form
    162,471.17/224,231.09 = 90,855.20/x
  3. Step 3: Cross multiply
    162,471.17x = 224,231.09 × 90,855.20
  4. Step 4: Simplify right side
    162,471.17x = 20,372,558,952.74
  5. Step 5: Solve for x
    x = 20,372,558,952.74/162,471.17
  6. Step 6: Final answer
    x = 125,391.84

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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.