Home / 99,408.64-137,182.86-59,121.52

Finding the Fourth Proportional to 99,408.64, 137,182.86 and 59,121.52

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Solution

The fourth proportional to 99,408.64, 137,182.86 and 59,121.52 is: 81,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,408.64 : 137,182.86 = 59,121.52 : x
  2. Step 2: Convert to fraction form
    99,408.64/137,182.86 = 59,121.52/x
  3. Step 3: Cross multiply
    99,408.64x = 137,182.86 × 59,121.52
  4. Step 4: Simplify right side
    99,408.64x = 8,110,459,103.57
  5. Step 5: Solve for x
    x = 8,110,459,103.57/99,408.64
  6. Step 6: Final answer
    x = 81,587.06

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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.