Home / 136,151.72-187,888.33-74,896.59

Finding the Fourth Proportional to 136,151.72, 187,888.33 and 74,896.59

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Solution

The fourth proportional to 136,151.72, 187,888.33 and 74,896.59 is: 103,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,151.72 : 187,888.33 = 74,896.59 : x
  2. Step 2: Convert to fraction form
    136,151.72/187,888.33 = 74,896.59/x
  3. Step 3: Cross multiply
    136,151.72x = 187,888.33 × 74,896.59
  4. Step 4: Simplify right side
    136,151.72x = 14,072,194,431.60
  5. Step 5: Solve for x
    x = 14,072,194,431.60/136,151.72
  6. Step 6: Final answer
    x = 103,356.72

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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.