Home / 105,264.90-145,263.82-57,517.22

Finding the Fourth Proportional to 105,264.90, 145,263.82 and 57,517.22

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Solution

The fourth proportional to 105,264.90, 145,263.82 and 57,517.22 is: 79,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,264.90 : 145,263.82 = 57,517.22 : x
  2. Step 2: Convert to fraction form
    105,264.90/145,263.82 = 57,517.22/x
  3. Step 3: Cross multiply
    105,264.90x = 145,263.82 × 57,517.22
  4. Step 4: Simplify right side
    105,264.90x = 8,355,171,092.98
  5. Step 5: Solve for x
    x = 8,355,171,092.98/105,264.90
  6. Step 6: Final answer
    x = 79,372.81

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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.