Home / 111,775.12-154,246.53-61,474.12

Finding the Fourth Proportional to 111,775.12, 154,246.53 and 61,474.12

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Solution

The fourth proportional to 111,775.12, 154,246.53 and 61,474.12 is: 84,832.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,775.12 : 154,246.53 = 61,474.12 : x
  2. Step 2: Convert to fraction form
    111,775.12/154,246.53 = 61,474.12/x
  3. Step 3: Cross multiply
    111,775.12x = 154,246.53 × 61,474.12
  4. Step 4: Simplify right side
    111,775.12x = 9,482,169,694.80
  5. Step 5: Solve for x
    x = 9,482,169,694.80/111,775.12
  6. Step 6: Final answer
    x = 84,832.56

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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.