Home / 136,288.66-188,027.89-136,078.47

Finding the Fourth Proportional to 136,288.66, 188,027.89 and 136,078.47

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Solution

The fourth proportional to 136,288.66, 188,027.89 and 136,078.47 is: 187,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,288.66 : 188,027.89 = 136,078.47 : x
  2. Step 2: Convert to fraction form
    136,288.66/188,027.89 = 136,078.47/x
  3. Step 3: Cross multiply
    136,288.66x = 188,027.89 × 136,078.47
  4. Step 4: Simplify right side
    136,288.66x = 25,586,547,588.53
  5. Step 5: Solve for x
    x = 25,586,547,588.53/136,288.66
  6. Step 6: Final answer
    x = 187,737.91

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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.