Home / 119,084.82-164,336.40-65,370.75

Finding the Fourth Proportional to 119,084.82, 164,336.40 and 65,370.75

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Solution

The fourth proportional to 119,084.82, 164,336.40 and 65,370.75 is: 90,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,084.82 : 164,336.40 = 65,370.75 : x
  2. Step 2: Convert to fraction form
    119,084.82/164,336.40 = 65,370.75/x
  3. Step 3: Cross multiply
    119,084.82x = 164,336.40 × 65,370.75
  4. Step 4: Simplify right side
    119,084.82x = 10,742,793,534.74
  5. Step 5: Solve for x
    x = 10,742,793,534.74/119,084.82
  6. Step 6: Final answer
    x = 90,211.28

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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.