Home / 117,087.42-161,584.56-71,756.65

Finding the Fourth Proportional to 117,087.42, 161,584.56 and 71,756.65

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Solution

The fourth proportional to 117,087.42, 161,584.56 and 71,756.65 is: 99,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,087.42 : 161,584.56 = 71,756.65 : x
  2. Step 2: Convert to fraction form
    117,087.42/161,584.56 = 71,756.65/x
  3. Step 3: Cross multiply
    117,087.42x = 161,584.56 × 71,756.65
  4. Step 4: Simplify right side
    117,087.42x = 11,594,766,717.32
  5. Step 5: Solve for x
    x = 11,594,766,717.32/117,087.42
  6. Step 6: Final answer
    x = 99,026.58

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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.