Home / 136,015.47-187,705.91-75,588.66

Finding the Fourth Proportional to 136,015.47, 187,705.91 and 75,588.66

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Solution

The fourth proportional to 136,015.47, 187,705.91 and 75,588.66 is: 104,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,015.47 : 187,705.91 = 75,588.66 : x
  2. Step 2: Convert to fraction form
    136,015.47/187,705.91 = 75,588.66/x
  3. Step 3: Cross multiply
    136,015.47x = 187,705.91 × 75,588.66
  4. Step 4: Simplify right side
    136,015.47x = 14,188,437,974.77
  5. Step 5: Solve for x
    x = 14,188,437,974.77/136,015.47
  6. Step 6: Final answer
    x = 104,314.88

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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.