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Finding the Fourth Proportional to 159,209.91, 238,618.02 and 80,346.69

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Solution

The fourth proportional to 159,209.91, 238,618.02 and 80,346.69 is: 120,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,209.91 : 238,618.02 = 80,346.69 : x
  2. Step 2: Convert to fraction form
    159,209.91/238,618.02 = 80,346.69/x
  3. Step 3: Cross multiply
    159,209.91x = 238,618.02 × 80,346.69
  4. Step 4: Simplify right side
    159,209.91x = 19,172,168,081.35
  5. Step 5: Solve for x
    x = 19,172,168,081.35/159,209.91
  6. Step 6: Final answer
    x = 120,420.70

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1.5x scale

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.