Home / 136,574.04-188,456.96-82,872.12

Finding the Fourth Proportional to 136,574.04, 188,456.96 and 82,872.12

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Solution

The fourth proportional to 136,574.04, 188,456.96 and 82,872.12 is: 114,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,574.04 : 188,456.96 = 82,872.12 : x
  2. Step 2: Convert to fraction form
    136,574.04/188,456.96 = 82,872.12/x
  3. Step 3: Cross multiply
    136,574.04x = 188,456.96 × 82,872.12
  4. Step 4: Simplify right side
    136,574.04x = 15,617,827,803.96
  5. Step 5: Solve for x
    x = 15,617,827,803.96/136,574.04
  6. Step 6: Final answer
    x = 114,354.29

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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.