Home / 115,218.36-159,006.24-64,231.08

Finding the Fourth Proportional to 115,218.36, 159,006.24 and 64,231.08

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Solution

The fourth proportional to 115,218.36, 159,006.24 and 64,231.08 is: 88,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,218.36 : 159,006.24 = 64,231.08 : x
  2. Step 2: Convert to fraction form
    115,218.36/159,006.24 = 64,231.08/x
  3. Step 3: Cross multiply
    115,218.36x = 159,006.24 × 64,231.08
  4. Step 4: Simplify right side
    115,218.36x = 10,213,142,521.94
  5. Step 5: Solve for x
    x = 10,213,142,521.94/115,218.36
  6. Step 6: Final answer
    x = 88,641.62

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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.