Home / 103,744.08-143,155.08-58,418.64

Finding the Fourth Proportional to 103,744.08, 143,155.08 and 58,418.64

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Solution

The fourth proportional to 103,744.08, 143,155.08 and 58,418.64 is: 80,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.08 : 143,155.08 = 58,418.64 : x
  2. Step 2: Convert to fraction form
    103,744.08/143,155.08 = 58,418.64/x
  3. Step 3: Cross multiply
    103,744.08x = 143,155.08 × 58,418.64
  4. Step 4: Simplify right side
    103,744.08x = 8,362,925,082.69
  5. Step 5: Solve for x
    x = 8,362,925,082.69/103,744.08
  6. Step 6: Final answer
    x = 80,611.11

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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.