Home / 111,286.44-153,545.40-63,530.28

Finding the Fourth Proportional to 111,286.44, 153,545.40 and 63,530.28

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Solution

The fourth proportional to 111,286.44, 153,545.40 and 63,530.28 is: 87,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,286.44 : 153,545.40 = 63,530.28 : x
  2. Step 2: Convert to fraction form
    111,286.44/153,545.40 = 63,530.28/x
  3. Step 3: Cross multiply
    111,286.44x = 153,545.40 × 63,530.28
  4. Step 4: Simplify right side
    111,286.44x = 9,754,782,254.71
  5. Step 5: Solve for x
    x = 9,754,782,254.71/111,286.44
  6. Step 6: Final answer
    x = 87,654.72

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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.