Home / 111,772.16-154,247.48-64,029.68

Finding the Fourth Proportional to 111,772.16, 154,247.48 and 64,029.68

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Solution

The fourth proportional to 111,772.16, 154,247.48 and 64,029.68 is: 88,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,772.16 : 154,247.48 = 64,029.68 : x
  2. Step 2: Convert to fraction form
    111,772.16/154,247.48 = 64,029.68/x
  3. Step 3: Cross multiply
    111,772.16x = 154,247.48 × 64,029.68
  4. Step 4: Simplify right side
    111,772.16x = 9,876,416,785.21
  5. Step 5: Solve for x
    x = 9,876,416,785.21/111,772.16
  6. Step 6: Final answer
    x = 88,362.05

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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.