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Finding the Fourth Proportional to 136,384.65, 188,159.88 and 136,174.38

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Solution

The fourth proportional to 136,384.65, 188,159.88 and 136,174.38 is: 187,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,384.65 : 188,159.88 = 136,174.38 : x
  2. Step 2: Convert to fraction form
    136,384.65/188,159.88 = 136,174.38/x
  3. Step 3: Cross multiply
    136,384.65x = 188,159.88 × 136,174.38
  4. Step 4: Simplify right side
    136,384.65x = 25,622,554,999.87
  5. Step 5: Solve for x
    x = 25,622,554,999.87/136,384.65
  6. Step 6: Final answer
    x = 187,869.79

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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.