Home / 136,381.65-188,155.74-136,171.38

Finding the Fourth Proportional to 136,381.65, 188,155.74 and 136,171.38

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Solution

The fourth proportional to 136,381.65, 188,155.74 and 136,171.38 is: 187,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,381.65 : 188,155.74 = 136,171.38 : x
  2. Step 2: Convert to fraction form
    136,381.65/188,155.74 = 136,171.38/x
  3. Step 3: Cross multiply
    136,381.65x = 188,155.74 × 136,171.38
  4. Step 4: Simplify right side
    136,381.65x = 25,621,426,770.72
  5. Step 5: Solve for x
    x = 25,621,426,770.72/136,381.65
  6. Step 6: Final answer
    x = 187,865.65

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1.5x scale

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.