Home / 103,788.62-143,239.18-63,529.18

Finding the Fourth Proportional to 103,788.62, 143,239.18 and 63,529.18

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Solution

The fourth proportional to 103,788.62, 143,239.18 and 63,529.18 is: 87,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,788.62 : 143,239.18 = 63,529.18 : x
  2. Step 2: Convert to fraction form
    103,788.62/143,239.18 = 63,529.18/x
  3. Step 3: Cross multiply
    103,788.62x = 143,239.18 × 63,529.18
  4. Step 4: Simplify right side
    103,788.62x = 9,099,867,649.27
  5. Step 5: Solve for x
    x = 9,099,867,649.27/103,788.62
  6. Step 6: Final answer
    x = 87,676.93

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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.