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Finding the Fourth Proportional to 179,613.70, 269,452.95 and 90,643.30

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Solution

The fourth proportional to 179,613.70, 269,452.95 and 90,643.30 is: 135,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,613.70 : 269,452.95 = 90,643.30 : x
  2. Step 2: Convert to fraction form
    179,613.70/269,452.95 = 90,643.30/x
  3. Step 3: Cross multiply
    179,613.70x = 269,452.95 × 90,643.30
  4. Step 4: Simplify right side
    179,613.70x = 24,424,104,582.74
  5. Step 5: Solve for x
    x = 24,424,104,582.74/179,613.70
  6. Step 6: Final answer
    x = 135,981.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.