Home / 119,110.14-164,373.78-65,400

Finding the Fourth Proportional to 119,110.14, 164,373.78 and 65,400

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Solution

The fourth proportional to 119,110.14, 164,373.78 and 65,400 is: 90,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,110.14 : 164,373.78 = 65,400 : x
  2. Step 2: Convert to fraction form
    119,110.14/164,373.78 = 65,400/x
  3. Step 3: Cross multiply
    119,110.14x = 164,373.78 × 65,400
  4. Step 4: Simplify right side
    119,110.14x = 10,750,045,212
  5. Step 5: Solve for x
    x = 10,750,045,212/119,110.14
  6. Step 6: Final answer
    x = 90,252.98

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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.