Home / 111,416.18-153,754.54-61,115.54

Finding the Fourth Proportional to 111,416.18, 153,754.54 and 61,115.54

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Solution

The fourth proportional to 111,416.18, 153,754.54 and 61,115.54 is: 84,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,416.18 : 153,754.54 = 61,115.54 : x
  2. Step 2: Convert to fraction form
    111,416.18/153,754.54 = 61,115.54/x
  3. Step 3: Cross multiply
    111,416.18x = 153,754.54 × 61,115.54
  4. Step 4: Simplify right side
    111,416.18x = 9,396,791,739.55
  5. Step 5: Solve for x
    x = 9,396,791,739.55/111,416.18
  6. Step 6: Final answer
    x = 84,339.56

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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.