Home / 111,222.28-153,456.18-63,458.44

Finding the Fourth Proportional to 111,222.28, 153,456.18 and 63,458.44

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Solution

The fourth proportional to 111,222.28, 153,456.18 and 63,458.44 is: 87,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,222.28 : 153,456.18 = 63,458.44 : x
  2. Step 2: Convert to fraction form
    111,222.28/153,456.18 = 63,458.44/x
  3. Step 3: Cross multiply
    111,222.28x = 153,456.18 × 63,458.44
  4. Step 4: Simplify right side
    111,222.28x = 9,738,089,791.16
  5. Step 5: Solve for x
    x = 9,738,089,791.16/111,222.28
  6. Step 6: Final answer
    x = 87,555.21

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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.