Home / 111,543.12-154,232.23-109,740.36

Finding the Fourth Proportional to 111,543.12, 154,232.23 and 109,740.36

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Solution

The fourth proportional to 111,543.12, 154,232.23 and 109,740.36 is: 151,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,543.12 : 154,232.23 = 109,740.36 : x
  2. Step 2: Convert to fraction form
    111,543.12/154,232.23 = 109,740.36/x
  3. Step 3: Cross multiply
    111,543.12x = 154,232.23 × 109,740.36
  4. Step 4: Simplify right side
    111,543.12x = 16,925,500,443.80
  5. Step 5: Solve for x
    x = 16,925,500,443.80/111,543.12
  6. Step 6: Final answer
    x = 151,739.53

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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.