Home / 111,537.12-153,911.64-63,782.76

Finding the Fourth Proportional to 111,537.12, 153,911.64 and 63,782.76

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Solution

The fourth proportional to 111,537.12, 153,911.64 and 63,782.76 is: 88,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,537.12 : 153,911.64 = 63,782.76 : x
  2. Step 2: Convert to fraction form
    111,537.12/153,911.64 = 63,782.76/x
  3. Step 3: Cross multiply
    111,537.12x = 153,911.64 × 63,782.76
  4. Step 4: Simplify right side
    111,537.12x = 9,816,909,195.33
  5. Step 5: Solve for x
    x = 9,816,909,195.33/111,537.12
  6. Step 6: Final answer
    x = 88,014.73

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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.