Home / 112,791.14-155,653.31-61,802.86

Finding the Fourth Proportional to 112,791.14, 155,653.31 and 61,802.86

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Solution

The fourth proportional to 112,791.14, 155,653.31 and 61,802.86 is: 85,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,791.14 : 155,653.31 = 61,802.86 : x
  2. Step 2: Convert to fraction form
    112,791.14/155,653.31 = 61,802.86/x
  3. Step 3: Cross multiply
    112,791.14x = 155,653.31 × 61,802.86
  4. Step 4: Simplify right side
    112,791.14x = 9,619,818,948.20
  5. Step 5: Solve for x
    x = 9,619,818,948.20/112,791.14
  6. Step 6: Final answer
    x = 85,288.78

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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.