Home / 198,875.36-274,549.56-153,451.28

Finding the Fourth Proportional to 198,875.36, 274,549.56 and 153,451.28

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Solution

The fourth proportional to 198,875.36, 274,549.56 and 153,451.28 is: 211,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,875.36 : 274,549.56 = 153,451.28 : x
  2. Step 2: Convert to fraction form
    198,875.36/274,549.56 = 153,451.28/x
  3. Step 3: Cross multiply
    198,875.36x = 274,549.56 × 153,451.28
  4. Step 4: Simplify right side
    198,875.36x = 42,129,981,405.44
  5. Step 5: Solve for x
    x = 42,129,981,405.44/198,875.36
  6. Step 6: Final answer
    x = 211,841.13

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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.