Home / 118,919.84-164,110.97-65,204.72

Finding the Fourth Proportional to 118,919.84, 164,110.97 and 65,204.72

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Solution

The fourth proportional to 118,919.84, 164,110.97 and 65,204.72 is: 89,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,919.84 : 164,110.97 = 65,204.72 : x
  2. Step 2: Convert to fraction form
    118,919.84/164,110.97 = 65,204.72/x
  3. Step 3: Cross multiply
    118,919.84x = 164,110.97 × 65,204.72
  4. Step 4: Simplify right side
    118,919.84x = 10,700,810,421.07
  5. Step 5: Solve for x
    x = 10,700,810,421.07/118,919.84
  6. Step 6: Final answer
    x = 89,983.39

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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.