Home / 113,705.84-156,795.35-79,290.59

Finding the Fourth Proportional to 113,705.84, 156,795.35 and 79,290.59

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Solution

The fourth proportional to 113,705.84, 156,795.35 and 79,290.59 is: 109,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,705.84 : 156,795.35 = 79,290.59 : x
  2. Step 2: Convert to fraction form
    113,705.84/156,795.35 = 79,290.59/x
  3. Step 3: Cross multiply
    113,705.84x = 156,795.35 × 79,290.59
  4. Step 4: Simplify right side
    113,705.84x = 12,432,394,630.33
  5. Step 5: Solve for x
    x = 12,432,394,630.33/113,705.84
  6. Step 6: Final answer
    x = 109,338.22

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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.