Home / 115,555.46-159,451.88-67,791.38

Finding the Fourth Proportional to 115,555.46, 159,451.88 and 67,791.38

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Solution

The fourth proportional to 115,555.46, 159,451.88 and 67,791.38 is: 93,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,555.46 : 159,451.88 = 67,791.38 : x
  2. Step 2: Convert to fraction form
    115,555.46/159,451.88 = 67,791.38/x
  3. Step 3: Cross multiply
    115,555.46x = 159,451.88 × 67,791.38
  4. Step 4: Simplify right side
    115,555.46x = 10,809,461,852.58
  5. Step 5: Solve for x
    x = 10,809,461,852.58/115,555.46
  6. Step 6: Final answer
    x = 93,543.50

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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.