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Finding the Fourth Proportional to 159,506.82, 220,119.84 and 87,886.62

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Solution

The fourth proportional to 159,506.82, 220,119.84 and 87,886.62 is: 121,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,506.82 : 220,119.84 = 87,886.62 : x
  2. Step 2: Convert to fraction form
    159,506.82/220,119.84 = 87,886.62/x
  3. Step 3: Cross multiply
    159,506.82x = 220,119.84 × 87,886.62
  4. Step 4: Simplify right side
    159,506.82x = 19,345,588,732.54
  5. Step 5: Solve for x
    x = 19,345,588,732.54/159,506.82
  6. Step 6: Final answer
    x = 121,283.77

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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.