Home / 159,085.17-219,541.77-87,467.04

Finding the Fourth Proportional to 159,085.17, 219,541.77 and 87,467.04

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Solution

The fourth proportional to 159,085.17, 219,541.77 and 87,467.04 is: 120,706.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,085.17 : 219,541.77 = 87,467.04 : x
  2. Step 2: Convert to fraction form
    159,085.17/219,541.77 = 87,467.04/x
  3. Step 3: Cross multiply
    159,085.17x = 219,541.77 × 87,467.04
  4. Step 4: Simplify right side
    159,085.17x = 19,202,668,778.26
  5. Step 5: Solve for x
    x = 19,202,668,778.26/159,085.17
  6. Step 6: Final answer
    x = 120,706.84

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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.