Home / 170,555.11-255,833.34-76,951.51

Finding the Fourth Proportional to 170,555.11, 255,833.34 and 76,951.51

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Solution

The fourth proportional to 170,555.11, 255,833.34 and 76,951.51 is: 115,427.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,555.11 : 255,833.34 = 76,951.51 : x
  2. Step 2: Convert to fraction form
    170,555.11/255,833.34 = 76,951.51/x
  3. Step 3: Cross multiply
    170,555.11x = 255,833.34 × 76,951.51
  4. Step 4: Simplify right side
    170,555.11x = 19,686,761,821.34
  5. Step 5: Solve for x
    x = 19,686,761,821.34/170,555.11
  6. Step 6: Final answer
    x = 115,427.57

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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.