Home / 103,679.45-143,082.32-58,373.02

Finding the Fourth Proportional to 103,679.45, 143,082.32 and 58,373.02

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Solution

The fourth proportional to 103,679.45, 143,082.32 and 58,373.02 is: 80,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,679.45 : 143,082.32 = 58,373.02 : x
  2. Step 2: Convert to fraction form
    103,679.45/143,082.32 = 58,373.02/x
  3. Step 3: Cross multiply
    103,679.45x = 143,082.32 × 58,373.02
  4. Step 4: Simplify right side
    103,679.45x = 8,352,147,127.01
  5. Step 5: Solve for x
    x = 8,352,147,127.01/103,679.45
  6. Step 6: Final answer
    x = 80,557.40

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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.