Home / 119,109.13-164,385.17-68,808.13

Finding the Fourth Proportional to 119,109.13, 164,385.17 and 68,808.13

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Solution

The fourth proportional to 119,109.13, 164,385.17 and 68,808.13 is: 94,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,109.13 : 164,385.17 = 68,808.13 : x
  2. Step 2: Convert to fraction form
    119,109.13/164,385.17 = 68,808.13/x
  3. Step 3: Cross multiply
    119,109.13x = 164,385.17 × 68,808.13
  4. Step 4: Simplify right side
    119,109.13x = 11,311,036,147.43
  5. Step 5: Solve for x
    x = 11,311,036,147.43/119,109.13
  6. Step 6: Final answer
    x = 94,963.64

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1.5x scale

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.