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Finding the Fourth Proportional to 159,832.76, 220,569.67 and 87,236.32

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Solution

The fourth proportional to 159,832.76, 220,569.67 and 87,236.32 is: 120,386.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,832.76 : 220,569.67 = 87,236.32 : x
  2. Step 2: Convert to fraction form
    159,832.76/220,569.67 = 87,236.32/x
  3. Step 3: Cross multiply
    159,832.76x = 220,569.67 × 87,236.32
  4. Step 4: Simplify right side
    159,832.76x = 19,241,685,542.58
  5. Step 5: Solve for x
    x = 19,241,685,542.58/159,832.76
  6. Step 6: Final answer
    x = 120,386.37

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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.