Home / 119,408.20-164,823.77-74,112.69

Finding the Fourth Proportional to 119,408.20, 164,823.77 and 74,112.69

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Solution

The fourth proportional to 119,408.20, 164,823.77 and 74,112.69 is: 102,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,408.20 : 164,823.77 = 74,112.69 : x
  2. Step 2: Convert to fraction form
    119,408.20/164,823.77 = 74,112.69/x
  3. Step 3: Cross multiply
    119,408.20x = 164,823.77 × 74,112.69
  4. Step 4: Simplify right side
    119,408.20x = 12,215,532,970.64
  5. Step 5: Solve for x
    x = 12,215,532,970.64/119,408.20
  6. Step 6: Final answer
    x = 102,300.62

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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.