Home / 188,279.14-259,827-103,398.04

Finding the Fourth Proportional to 188,279.14, 259,827 and 103,398.04

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Solution

The fourth proportional to 188,279.14, 259,827 and 103,398.04 is: 142,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,279.14 : 259,827 = 103,398.04 : x
  2. Step 2: Convert to fraction form
    188,279.14/259,827 = 103,398.04/x
  3. Step 3: Cross multiply
    188,279.14x = 259,827 × 103,398.04
  4. Step 4: Simplify right side
    188,279.14x = 26,865,602,539.08
  5. Step 5: Solve for x
    x = 26,865,602,539.08/188,279.14
  6. Step 6: Final answer
    x = 142,690.28

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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.