Home / 188,153.22-282,081.87-128,809.02

Finding the Fourth Proportional to 188,153.22, 282,081.87 and 128,809.02

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Solution

The fourth proportional to 188,153.22, 282,081.87 and 128,809.02 is: 193,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,153.22 : 282,081.87 = 128,809.02 : x
  2. Step 2: Convert to fraction form
    188,153.22/282,081.87 = 128,809.02/x
  3. Step 3: Cross multiply
    188,153.22x = 282,081.87 × 128,809.02
  4. Step 4: Simplify right side
    188,153.22x = 36,334,689,234.47
  5. Step 5: Solve for x
    x = 36,334,689,234.47/188,153.22
  6. Step 6: Final answer
    x = 193,112.24

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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.