Home / 111,195.24-153,387.18-65,828.96

Finding the Fourth Proportional to 111,195.24, 153,387.18 and 65,828.96

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Solution

The fourth proportional to 111,195.24, 153,387.18 and 65,828.96 is: 90,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,195.24 : 153,387.18 = 65,828.96 : x
  2. Step 2: Convert to fraction form
    111,195.24/153,387.18 = 65,828.96/x
  3. Step 3: Cross multiply
    111,195.24x = 153,387.18 × 65,828.96
  4. Step 4: Simplify right side
    111,195.24x = 10,097,318,536.73
  5. Step 5: Solve for x
    x = 10,097,318,536.73/111,195.24
  6. Step 6: Final answer
    x = 90,807.11

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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.