Home / 213,082.10-319,588.24-86,717.24

Finding the Fourth Proportional to 213,082.10, 319,588.24 and 86,717.24

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Solution

The fourth proportional to 213,082.10, 319,588.24 and 86,717.24 is: 130,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,082.10 : 319,588.24 = 86,717.24 : x
  2. Step 2: Convert to fraction form
    213,082.10/319,588.24 = 86,717.24/x
  3. Step 3: Cross multiply
    213,082.10x = 319,588.24 × 86,717.24
  4. Step 4: Simplify right side
    213,082.10x = 27,713,810,109.26
  5. Step 5: Solve for x
    x = 27,713,810,109.26/213,082.10
  6. Step 6: Final answer
    x = 130,061.65

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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.