Home / 137,899.92-190,175.44-89,451.34

Finding the Fourth Proportional to 137,899.92, 190,175.44 and 89,451.34

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Solution

The fourth proportional to 137,899.92, 190,175.44 and 89,451.34 is: 123,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,899.92 : 190,175.44 = 89,451.34 : x
  2. Step 2: Convert to fraction form
    137,899.92/190,175.44 = 89,451.34/x
  3. Step 3: Cross multiply
    137,899.92x = 190,175.44 × 89,451.34
  4. Step 4: Simplify right side
    137,899.92x = 17,011,447,943.09
  5. Step 5: Solve for x
    x = 17,011,447,943.09/137,899.92
  6. Step 6: Final answer
    x = 123,360.83

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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.