Home / 140,928.40-194,378.16-89,976.16

Finding the Fourth Proportional to 140,928.40, 194,378.16 and 89,976.16

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Solution

The fourth proportional to 140,928.40, 194,378.16 and 89,976.16 is: 124,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,928.40 : 194,378.16 = 89,976.16 : x
  2. Step 2: Convert to fraction form
    140,928.40/194,378.16 = 89,976.16/x
  3. Step 3: Cross multiply
    140,928.40x = 194,378.16 × 89,976.16
  4. Step 4: Simplify right side
    140,928.40x = 17,489,400,424.67
  5. Step 5: Solve for x
    x = 17,489,400,424.67/140,928.40
  6. Step 6: Final answer
    x = 124,101.32

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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.