Home / 188,405.52-260,012.04-103,523.28

Finding the Fourth Proportional to 188,405.52, 260,012.04 and 103,523.28

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Solution

The fourth proportional to 188,405.52, 260,012.04 and 103,523.28 is: 142,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,405.52 : 260,012.04 = 103,523.28 : x
  2. Step 2: Convert to fraction form
    188,405.52/260,012.04 = 103,523.28/x
  3. Step 3: Cross multiply
    188,405.52x = 260,012.04 × 103,523.28
  4. Step 4: Simplify right side
    188,405.52x = 26,917,299,220.29
  5. Step 5: Solve for x
    x = 26,917,299,220.29/188,405.52
  6. Step 6: Final answer
    x = 142,868.95

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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.