Home / 136,521.66-188,377.04-76,079.04

Finding the Fourth Proportional to 136,521.66, 188,377.04 and 76,079.04

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Solution

The fourth proportional to 136,521.66, 188,377.04 and 76,079.04 is: 104,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,521.66 : 188,377.04 = 76,079.04 : x
  2. Step 2: Convert to fraction form
    136,521.66/188,377.04 = 76,079.04/x
  3. Step 3: Cross multiply
    136,521.66x = 188,377.04 × 76,079.04
  4. Step 4: Simplify right side
    136,521.66x = 14,331,544,361.24
  5. Step 5: Solve for x
    x = 14,331,544,361.24/136,521.66
  6. Step 6: Final answer
    x = 104,976.34

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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.