Home / 109,318.36-163,977.57-84,394.79

Finding the Fourth Proportional to 109,318.36, 163,977.57 and 84,394.79

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Solution

The fourth proportional to 109,318.36, 163,977.57 and 84,394.79 is: 126,592.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,318.36 : 163,977.57 = 84,394.79 : x
  2. Step 2: Convert to fraction form
    109,318.36/163,977.57 = 84,394.79/x
  3. Step 3: Cross multiply
    109,318.36x = 163,977.57 × 84,394.79
  4. Step 4: Simplify right side
    109,318.36x = 13,838,852,584.86
  5. Step 5: Solve for x
    x = 13,838,852,584.86/109,318.36
  6. Step 6: Final answer
    x = 126,592.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.