Home / 159,085.10-219,538.92-87,465.62

Finding the Fourth Proportional to 159,085.10, 219,538.92 and 87,465.62

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Solution

The fourth proportional to 159,085.10, 219,538.92 and 87,465.62 is: 120,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,085.10 : 219,538.92 = 87,465.62 : x
  2. Step 2: Convert to fraction form
    159,085.10/219,538.92 = 87,465.62/x
  3. Step 3: Cross multiply
    159,085.10x = 219,538.92 × 87,465.62
  4. Step 4: Simplify right side
    159,085.10x = 19,202,107,751.93
  5. Step 5: Solve for x
    x = 19,202,107,751.93/159,085.10
  6. Step 6: Final answer
    x = 120,703.37

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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.