Home / 119,418.90-164,821.65-68,465.86

Finding the Fourth Proportional to 119,418.90, 164,821.65 and 68,465.86

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Solution

The fourth proportional to 119,418.90, 164,821.65 and 68,465.86 is: 94,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,418.90 : 164,821.65 = 68,465.86 : x
  2. Step 2: Convert to fraction form
    119,418.90/164,821.65 = 68,465.86/x
  3. Step 3: Cross multiply
    119,418.90x = 164,821.65 × 68,465.86
  4. Step 4: Simplify right side
    119,418.90x = 11,284,656,013.87
  5. Step 5: Solve for x
    x = 11,284,656,013.87/119,418.90
  6. Step 6: Final answer
    x = 94,496.40

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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.