Home / 111,219.62-153,439.53-70,922.66

Finding the Fourth Proportional to 111,219.62, 153,439.53 and 70,922.66

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Solution

The fourth proportional to 111,219.62, 153,439.53 and 70,922.66 is: 97,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,219.62 : 153,439.53 = 70,922.66 : x
  2. Step 2: Convert to fraction form
    111,219.62/153,439.53 = 70,922.66/x
  3. Step 3: Cross multiply
    111,219.62x = 153,439.53 × 70,922.66
  4. Step 4: Simplify right side
    111,219.62x = 10,882,339,616.75
  5. Step 5: Solve for x
    x = 10,882,339,616.75/111,219.62
  6. Step 6: Final answer
    x = 97,845.50

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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.