Home / 111,816.36-154,328.40-64,101.60

Finding the Fourth Proportional to 111,816.36, 154,328.40 and 64,101.60

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Solution

The fourth proportional to 111,816.36, 154,328.40 and 64,101.60 is: 88,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,816.36 : 154,328.40 = 64,101.60 : x
  2. Step 2: Convert to fraction form
    111,816.36/154,328.40 = 64,101.60/x
  3. Step 3: Cross multiply
    111,816.36x = 154,328.40 × 64,101.60
  4. Step 4: Simplify right side
    111,816.36x = 9,892,697,365.44
  5. Step 5: Solve for x
    x = 9,892,697,365.44/111,816.36
  6. Step 6: Final answer
    x = 88,472.72

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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.