Home / 136,002.15-187,709.81-86,912.37

Finding the Fourth Proportional to 136,002.15, 187,709.81 and 86,912.37

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Solution

The fourth proportional to 136,002.15, 187,709.81 and 86,912.37 is: 119,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,002.15 : 187,709.81 = 86,912.37 : x
  2. Step 2: Convert to fraction form
    136,002.15/187,709.81 = 86,912.37/x
  3. Step 3: Cross multiply
    136,002.15x = 187,709.81 × 86,912.37
  4. Step 4: Simplify right side
    136,002.15x = 16,314,304,024.79
  5. Step 5: Solve for x
    x = 16,314,304,024.79/136,002.15
  6. Step 6: Final answer
    x = 119,956.22

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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.