Home / 138,576.44-191,235.98-74,914.25

Finding the Fourth Proportional to 138,576.44, 191,235.98 and 74,914.25

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Solution

The fourth proportional to 138,576.44, 191,235.98 and 74,914.25 is: 103,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,576.44 : 191,235.98 = 74,914.25 : x
  2. Step 2: Convert to fraction form
    138,576.44/191,235.98 = 74,914.25/x
  3. Step 3: Cross multiply
    138,576.44x = 191,235.98 × 74,914.25
  4. Step 4: Simplify right side
    138,576.44x = 14,326,299,640.14
  5. Step 5: Solve for x
    x = 14,326,299,640.14/138,576.44
  6. Step 6: Final answer
    x = 103,381.93

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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.