Home / 112,619.52-155,416.32-62,323.20

Finding the Fourth Proportional to 112,619.52, 155,416.32 and 62,323.20

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Solution

The fourth proportional to 112,619.52, 155,416.32 and 62,323.20 is: 86,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,619.52 : 155,416.32 = 62,323.20 : x
  2. Step 2: Convert to fraction form
    112,619.52/155,416.32 = 62,323.20/x
  3. Step 3: Cross multiply
    112,619.52x = 155,416.32 × 62,323.20
  4. Step 4: Simplify right side
    112,619.52x = 9,686,042,394.62
  5. Step 5: Solve for x
    x = 9,686,042,394.62/112,619.52
  6. Step 6: Final answer
    x = 86,006.78

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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.