Home / 143,536.83-198,115.98-111,207.50

Finding the Fourth Proportional to 143,536.83, 198,115.98 and 111,207.50

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Solution

The fourth proportional to 143,536.83, 198,115.98 and 111,207.50 is: 153,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,536.83 : 198,115.98 = 111,207.50 : x
  2. Step 2: Convert to fraction form
    143,536.83/198,115.98 = 111,207.50/x
  3. Step 3: Cross multiply
    143,536.83x = 198,115.98 × 111,207.50
  4. Step 4: Simplify right side
    143,536.83x = 22,031,982,289.81
  5. Step 5: Solve for x
    x = 22,031,982,289.81/143,536.83
  6. Step 6: Final answer
    x = 153,493.58

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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.