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Finding the Fourth Proportional to 188,095.70, 282,186.50 and 81,497.36

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Solution

The fourth proportional to 188,095.70, 282,186.50 and 81,497.36 is: 122,264.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,095.70 : 282,186.50 = 81,497.36 : x
  2. Step 2: Convert to fraction form
    188,095.70/282,186.50 = 81,497.36/x
  3. Step 3: Cross multiply
    188,095.70x = 282,186.50 × 81,497.36
  4. Step 4: Simplify right side
    188,095.70x = 22,997,452,959.22
  5. Step 5: Solve for x
    x = 22,997,452,959.22/188,095.70
  6. Step 6: Final answer
    x = 122,264.64

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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.