Home / 103,623.62-143,005.84-61,181.24

Finding the Fourth Proportional to 103,623.62, 143,005.84 and 61,181.24

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Solution

The fourth proportional to 103,623.62, 143,005.84 and 61,181.24 is: 84,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.62 : 143,005.84 = 61,181.24 : x
  2. Step 2: Convert to fraction form
    103,623.62/143,005.84 = 61,181.24/x
  3. Step 3: Cross multiply
    103,623.62x = 143,005.84 × 61,181.24
  4. Step 4: Simplify right side
    103,623.62x = 8,749,273,750.46
  5. Step 5: Solve for x
    x = 8,749,273,750.46/103,623.62
  6. Step 6: Final answer
    x = 84,433.20

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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.