Home / 111,760.12-154,225.92-61,459.12

Finding the Fourth Proportional to 111,760.12, 154,225.92 and 61,459.12

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Solution

The fourth proportional to 111,760.12, 154,225.92 and 61,459.12 is: 84,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,760.12 : 154,225.92 = 61,459.12 : x
  2. Step 2: Convert to fraction form
    111,760.12/154,225.92 = 61,459.12/x
  3. Step 3: Cross multiply
    111,760.12x = 154,225.92 × 61,459.12
  4. Step 4: Simplify right side
    111,760.12x = 9,478,589,324.39
  5. Step 5: Solve for x
    x = 9,478,589,324.39/111,760.12
  6. Step 6: Final answer
    x = 84,811.91

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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.