Home / 115,278.68-159,085.48-64,294.65

Finding the Fourth Proportional to 115,278.68, 159,085.48 and 64,294.65

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Solution

The fourth proportional to 115,278.68, 159,085.48 and 64,294.65 is: 88,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,278.68 : 159,085.48 = 64,294.65 : x
  2. Step 2: Convert to fraction form
    115,278.68/159,085.48 = 64,294.65/x
  3. Step 3: Cross multiply
    115,278.68x = 159,085.48 × 64,294.65
  4. Step 4: Simplify right side
    115,278.68x = 10,228,345,256.68
  5. Step 5: Solve for x
    x = 10,228,345,256.68/115,278.68
  6. Step 6: Final answer
    x = 88,727.12

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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.