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Finding the Fourth Proportional to 162,345.62, 224,028.64 and 90,711.65

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Solution

The fourth proportional to 162,345.62, 224,028.64 and 90,711.65 is: 125,177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,345.62 : 224,028.64 = 90,711.65 : x
  2. Step 2: Convert to fraction form
    162,345.62/224,028.64 = 90,711.65/x
  3. Step 3: Cross multiply
    162,345.62x = 224,028.64 × 90,711.65
  4. Step 4: Simplify right side
    162,345.62x = 20,322,007,581.66
  5. Step 5: Solve for x
    x = 20,322,007,581.66/162,345.62
  6. Step 6: Final answer
    x = 125,177.43

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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.