Home / 138,466.06-191,083.35-74,803.87

Finding the Fourth Proportional to 138,466.06, 191,083.35 and 74,803.87

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Solution

The fourth proportional to 138,466.06, 191,083.35 and 74,803.87 is: 103,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,466.06 : 191,083.35 = 74,803.87 : x
  2. Step 2: Convert to fraction form
    138,466.06/191,083.35 = 74,803.87/x
  3. Step 3: Cross multiply
    138,466.06x = 191,083.35 × 74,803.87
  4. Step 4: Simplify right side
    138,466.06x = 14,293,774,072.56
  5. Step 5: Solve for x
    x = 14,293,774,072.56/138,466.06
  6. Step 6: Final answer
    x = 103,229.44

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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.