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Finding the Fourth Proportional to 100,118.40, 150,177.60 and 96,619.20

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Solution

The fourth proportional to 100,118.40, 150,177.60 and 96,619.20 is: 144,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,118.40 : 150,177.60 = 96,619.20 : x
  2. Step 2: Convert to fraction form
    100,118.40/150,177.60 = 96,619.20/x
  3. Step 3: Cross multiply
    100,118.40x = 150,177.60 × 96,619.20
  4. Step 4: Simplify right side
    100,118.40x = 14,510,039,569.92
  5. Step 5: Solve for x
    x = 14,510,039,569.92/100,118.40
  6. Step 6: Final answer
    x = 144,928.80

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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.