Home / 188,840.20-282,677.10-109,719.40

Finding the Fourth Proportional to 188,840.20, 282,677.10 and 109,719.40

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Solution

The fourth proportional to 188,840.20, 282,677.10 and 109,719.40 is: 164,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,840.20 : 282,677.10 = 109,719.40 : x
  2. Step 2: Convert to fraction form
    188,840.20/282,677.10 = 109,719.40/x
  3. Step 3: Cross multiply
    188,840.20x = 282,677.10 × 109,719.40
  4. Step 4: Simplify right side
    188,840.20x = 31,015,161,805.74
  5. Step 5: Solve for x
    x = 31,015,161,805.74/188,840.20
  6. Step 6: Final answer
    x = 164,240.25

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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.