Home / 103,087.82-142,261.11-57,766.16

Finding the Fourth Proportional to 103,087.82, 142,261.11 and 57,766.16

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Solution

The fourth proportional to 103,087.82, 142,261.11 and 57,766.16 is: 79,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,087.82 : 142,261.11 = 57,766.16 : x
  2. Step 2: Convert to fraction form
    103,087.82/142,261.11 = 57,766.16/x
  3. Step 3: Cross multiply
    103,087.82x = 142,261.11 × 57,766.16
  4. Step 4: Simplify right side
    103,087.82x = 8,217,877,330.73
  5. Step 5: Solve for x
    x = 8,217,877,330.73/103,087.82
  6. Step 6: Final answer
    x = 79,717.25

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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.