Home / 138,734.01-191,453.44-75,071.81

Finding the Fourth Proportional to 138,734.01, 191,453.44 and 75,071.81

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Solution

The fourth proportional to 138,734.01, 191,453.44 and 75,071.81 is: 103,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,734.01 : 191,453.44 = 75,071.81 : x
  2. Step 2: Convert to fraction form
    138,734.01/191,453.44 = 75,071.81/x
  3. Step 3: Cross multiply
    138,734.01x = 191,453.44 × 75,071.81
  4. Step 4: Simplify right side
    138,734.01x = 14,372,755,314.26
  5. Step 5: Solve for x
    x = 14,372,755,314.26/138,734.01
  6. Step 6: Final answer
    x = 103,599.36

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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.