Home / 125,515.76-173,212.96-68,928.34

Finding the Fourth Proportional to 125,515.76, 173,212.96 and 68,928.34

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Solution

The fourth proportional to 125,515.76, 173,212.96 and 68,928.34 is: 95,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,515.76 : 173,212.96 = 68,928.34 : x
  2. Step 2: Convert to fraction form
    125,515.76/173,212.96 = 68,928.34/x
  3. Step 3: Cross multiply
    125,515.76x = 173,212.96 × 68,928.34
  4. Step 4: Simplify right side
    125,515.76x = 11,939,281,799.29
  5. Step 5: Solve for x
    x = 11,939,281,799.29/125,515.76
  6. Step 6: Final answer
    x = 95,121.77

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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.