Home / 111,044.72-153,245.68-63,290.36

Finding the Fourth Proportional to 111,044.72, 153,245.68 and 63,290.36

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Solution

The fourth proportional to 111,044.72, 153,245.68 and 63,290.36 is: 87,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,044.72 : 153,245.68 = 63,290.36 : x
  2. Step 2: Convert to fraction form
    111,044.72/153,245.68 = 63,290.36/x
  3. Step 3: Cross multiply
    111,044.72x = 153,245.68 × 63,290.36
  4. Step 4: Simplify right side
    111,044.72x = 9,698,974,255.64
  5. Step 5: Solve for x
    x = 9,698,974,255.64/111,044.72
  6. Step 6: Final answer
    x = 87,342.96

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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.