Home / 220,787.56-304,646.43-130,172.05

Finding the Fourth Proportional to 220,787.56, 304,646.43 and 130,172.05

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Solution

The fourth proportional to 220,787.56, 304,646.43 and 130,172.05 is: 179,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,787.56 : 304,646.43 = 130,172.05 : x
  2. Step 2: Convert to fraction form
    220,787.56/304,646.43 = 130,172.05/x
  3. Step 3: Cross multiply
    220,787.56x = 304,646.43 × 130,172.05
  4. Step 4: Simplify right side
    220,787.56x = 39,656,450,318.28
  5. Step 5: Solve for x
    x = 39,656,450,318.28/220,787.56
  6. Step 6: Final answer
    x = 179,613.61

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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.