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Finding the Fourth Proportional to 162,392.71, 224,105.97 and 90,784.66

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Solution

The fourth proportional to 162,392.71, 224,105.97 and 90,784.66 is: 125,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,392.71 : 224,105.97 = 90,784.66 : x
  2. Step 2: Convert to fraction form
    162,392.71/224,105.97 = 90,784.66/x
  3. Step 3: Cross multiply
    162,392.71x = 224,105.97 × 90,784.66
  4. Step 4: Simplify right side
    162,392.71x = 20,345,384,290.42
  5. Step 5: Solve for x
    x = 20,345,384,290.42/162,392.71
  6. Step 6: Final answer
    x = 125,285.08

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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.