Home / 99,371.22-137,137.08-56,929.85

Finding the Fourth Proportional to 99,371.22, 137,137.08 and 56,929.85

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Solution

The fourth proportional to 99,371.22, 137,137.08 and 56,929.85 is: 78,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,371.22 : 137,137.08 = 56,929.85 : x
  2. Step 2: Convert to fraction form
    99,371.22/137,137.08 = 56,929.85/x
  3. Step 3: Cross multiply
    99,371.22x = 137,137.08 × 56,929.85
  4. Step 4: Simplify right side
    99,371.22x = 7,807,193,393.84
  5. Step 5: Solve for x
    x = 7,807,193,393.84/99,371.22
  6. Step 6: Final answer
    x = 78,565.94

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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.