Home / 138,466.56-191,084.04-74,804.37

Finding the Fourth Proportional to 138,466.56, 191,084.04 and 74,804.37

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Solution

The fourth proportional to 138,466.56, 191,084.04 and 74,804.37 is: 103,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,466.56 : 191,084.04 = 74,804.37 : x
  2. Step 2: Convert to fraction form
    138,466.56/191,084.04 = 74,804.37/x
  3. Step 3: Cross multiply
    138,466.56x = 191,084.04 × 74,804.37
  4. Step 4: Simplify right side
    138,466.56x = 14,293,921,229.25
  5. Step 5: Solve for x
    x = 14,293,921,229.25/138,466.56
  6. Step 6: Final answer
    x = 103,230.13

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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.