Home / 99,137.51-136,747.39-58,822.66

Finding the Fourth Proportional to 99,137.51, 136,747.39 and 58,822.66

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Solution

The fourth proportional to 99,137.51, 136,747.39 and 58,822.66 is: 81,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,137.51 : 136,747.39 = 58,822.66 : x
  2. Step 2: Convert to fraction form
    99,137.51/136,747.39 = 58,822.66/x
  3. Step 3: Cross multiply
    99,137.51x = 136,747.39 × 58,822.66
  4. Step 4: Simplify right side
    99,137.51x = 8,043,845,227.86
  5. Step 5: Solve for x
    x = 8,043,845,227.86/99,137.51
  6. Step 6: Final answer
    x = 81,138.26

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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.