Home / 111,936.32-154,466.08-64,191.68

Finding the Fourth Proportional to 111,936.32, 154,466.08 and 64,191.68

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Solution

The fourth proportional to 111,936.32, 154,466.08 and 64,191.68 is: 88,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.32 : 154,466.08 = 64,191.68 : x
  2. Step 2: Convert to fraction form
    111,936.32/154,466.08 = 64,191.68/x
  3. Step 3: Cross multiply
    111,936.32x = 154,466.08 × 64,191.68
  4. Step 4: Simplify right side
    111,936.32x = 9,915,437,178.21
  5. Step 5: Solve for x
    x = 9,915,437,178.21/111,936.32
  6. Step 6: Final answer
    x = 88,581.05

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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.