Home / 115,450.80-159,278.23-70,111.65

Finding the Fourth Proportional to 115,450.80, 159,278.23 and 70,111.65

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Solution

The fourth proportional to 115,450.80, 159,278.23 and 70,111.65 is: 96,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,450.80 : 159,278.23 = 70,111.65 : x
  2. Step 2: Convert to fraction form
    115,450.80/159,278.23 = 70,111.65/x
  3. Step 3: Cross multiply
    115,450.80x = 159,278.23 × 70,111.65
  4. Step 4: Simplify right side
    115,450.80x = 11,167,259,514.38
  5. Step 5: Solve for x
    x = 11,167,259,514.38/115,450.80
  6. Step 6: Final answer
    x = 96,727.43

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1.5x scale

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.