Home / 221,083.11-305,008.08-136,052.55

Finding the Fourth Proportional to 221,083.11, 305,008.08 and 136,052.55

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Solution

The fourth proportional to 221,083.11, 305,008.08 and 136,052.55 is: 187,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,083.11 : 305,008.08 = 136,052.55 : x
  2. Step 2: Convert to fraction form
    221,083.11/305,008.08 = 136,052.55/x
  3. Step 3: Cross multiply
    221,083.11x = 305,008.08 × 136,052.55
  4. Step 4: Simplify right side
    221,083.11x = 41,497,127,054.60
  5. Step 5: Solve for x
    x = 41,497,127,054.60/221,083.11
  6. Step 6: Final answer
    x = 187,699.22

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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.