Home / 143,264.89-197,712.26-79,603.75

Finding the Fourth Proportional to 143,264.89, 197,712.26 and 79,603.75

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Solution

The fourth proportional to 143,264.89, 197,712.26 and 79,603.75 is: 109,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,264.89 : 197,712.26 = 79,603.75 : x
  2. Step 2: Convert to fraction form
    143,264.89/197,712.26 = 79,603.75/x
  3. Step 3: Cross multiply
    143,264.89x = 197,712.26 × 79,603.75
  4. Step 4: Simplify right side
    143,264.89x = 15,738,637,316.98
  5. Step 5: Solve for x
    x = 15,738,637,316.98/143,264.89
  6. Step 6: Final answer
    x = 109,856.90

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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.