Home / 124,586.82-171,949.50-79,217.51

Finding the Fourth Proportional to 124,586.82, 171,949.50 and 79,217.51

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Solution

The fourth proportional to 124,586.82, 171,949.50 and 79,217.51 is: 109,332.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,586.82 : 171,949.50 = 79,217.51 : x
  2. Step 2: Convert to fraction form
    124,586.82/171,949.50 = 79,217.51/x
  3. Step 3: Cross multiply
    124,586.82x = 171,949.50 × 79,217.51
  4. Step 4: Simplify right side
    124,586.82x = 13,621,410,376.00
  5. Step 5: Solve for x
    x = 13,621,410,376.00/124,586.82
  6. Step 6: Final answer
    x = 109,332.68

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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.