Home / 111,500.28-153,832.59-63,719.55

Finding the Fourth Proportional to 111,500.28, 153,832.59 and 63,719.55

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Solution

The fourth proportional to 111,500.28, 153,832.59 and 63,719.55 is: 87,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,500.28 : 153,832.59 = 63,719.55 : x
  2. Step 2: Convert to fraction form
    111,500.28/153,832.59 = 63,719.55/x
  3. Step 3: Cross multiply
    111,500.28x = 153,832.59 × 63,719.55
  4. Step 4: Simplify right side
    111,500.28x = 9,802,143,410.13
  5. Step 5: Solve for x
    x = 9,802,143,410.13/111,500.28
  6. Step 6: Final answer
    x = 87,911.38

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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.