Home / 143,082.84-197,454.18-79,420.50

Finding the Fourth Proportional to 143,082.84, 197,454.18 and 79,420.50

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Solution

The fourth proportional to 143,082.84, 197,454.18 and 79,420.50 is: 109,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,082.84 : 197,454.18 = 79,420.50 : x
  2. Step 2: Convert to fraction form
    143,082.84/197,454.18 = 79,420.50/x
  3. Step 3: Cross multiply
    143,082.84x = 197,454.18 × 79,420.50
  4. Step 4: Simplify right side
    143,082.84x = 15,681,909,702.69
  5. Step 5: Solve for x
    x = 15,681,909,702.69/143,082.84
  6. Step 6: Final answer
    x = 109,600.21

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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.