Home / 98,126.66-135,418.05-55,113.72

Finding the Fourth Proportional to 98,126.66, 135,418.05 and 55,113.72

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Solution

The fourth proportional to 98,126.66, 135,418.05 and 55,113.72 is: 76,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,126.66 : 135,418.05 = 55,113.72 : x
  2. Step 2: Convert to fraction form
    98,126.66/135,418.05 = 55,113.72/x
  3. Step 3: Cross multiply
    98,126.66x = 135,418.05 × 55,113.72
  4. Step 4: Simplify right side
    98,126.66x = 7,463,392,137.84
  5. Step 5: Solve for x
    x = 7,463,392,137.84/98,126.66
  6. Step 6: Final answer
    x = 76,058.76

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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.