Home / 124,444.20-171,747.78-78,570.48

Finding the Fourth Proportional to 124,444.20, 171,747.78 and 78,570.48

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Solution

The fourth proportional to 124,444.20, 171,747.78 and 78,570.48 is: 108,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,444.20 : 171,747.78 = 78,570.48 : x
  2. Step 2: Convert to fraction form
    124,444.20/171,747.78 = 78,570.48/x
  3. Step 3: Cross multiply
    124,444.20x = 171,747.78 × 78,570.48
  4. Step 4: Simplify right side
    124,444.20x = 13,494,305,513.53
  5. Step 5: Solve for x
    x = 13,494,305,513.53/124,444.20
  6. Step 6: Final answer
    x = 108,436.60

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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.