Home / 136,868.79-187,507.10-131,751.74

Finding the Fourth Proportional to 136,868.79, 187,507.10 and 131,751.74

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Solution

The fourth proportional to 136,868.79, 187,507.10 and 131,751.74 is: 180,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,868.79 : 187,507.10 = 131,751.74 : x
  2. Step 2: Convert to fraction form
    136,868.79/187,507.10 = 131,751.74/x
  3. Step 3: Cross multiply
    136,868.79x = 187,507.10 × 131,751.74
  4. Step 4: Simplify right side
    136,868.79x = 24,704,385,091.06
  5. Step 5: Solve for x
    x = 24,704,385,091.06/136,868.79
  6. Step 6: Final answer
    x = 180,496.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.