Home / 119,109.54-164,339.04-68,111.76

Finding the Fourth Proportional to 119,109.54, 164,339.04 and 68,111.76

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Solution

The fourth proportional to 119,109.54, 164,339.04 and 68,111.76 is: 93,975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,109.54 : 164,339.04 = 68,111.76 : x
  2. Step 2: Convert to fraction form
    119,109.54/164,339.04 = 68,111.76/x
  3. Step 3: Cross multiply
    119,109.54x = 164,339.04 × 68,111.76
  4. Step 4: Simplify right side
    119,109.54x = 11,193,421,251.11
  5. Step 5: Solve for x
    x = 11,193,421,251.11/119,109.54
  6. Step 6: Final answer
    x = 93,975.86

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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.