Home / 188,787.11-283,186.80-55,656.21

Finding the Fourth Proportional to 188,787.11, 283,186.80 and 55,656.21

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Solution

The fourth proportional to 188,787.11, 283,186.80 and 55,656.21 is: 83,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,787.11 : 283,186.80 = 55,656.21 : x
  2. Step 2: Convert to fraction form
    188,787.11/283,186.80 = 55,656.21/x
  3. Step 3: Cross multiply
    188,787.11x = 283,186.80 × 55,656.21
  4. Step 4: Simplify right side
    188,787.11x = 15,761,104,010.03
  5. Step 5: Solve for x
    x = 15,761,104,010.03/188,787.11
  6. Step 6: Final answer
    x = 83,486.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.