Home / 100,628.10-151,074.05-67,496.40

Finding the Fourth Proportional to 100,628.10, 151,074.05 and 67,496.40

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Solution

The fourth proportional to 100,628.10, 151,074.05 and 67,496.40 is: 101,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,628.10 : 151,074.05 = 67,496.40 : x
  2. Step 2: Convert to fraction form
    100,628.10/151,074.05 = 67,496.40/x
  3. Step 3: Cross multiply
    100,628.10x = 151,074.05 × 67,496.40
  4. Step 4: Simplify right side
    100,628.10x = 10,196,954,508.42
  5. Step 5: Solve for x
    x = 10,196,954,508.42/100,628.10
  6. Step 6: Final answer
    x = 101,333.07

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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.