Home / 119,764.40-165,286-68,784.16

Finding the Fourth Proportional to 119,764.40, 165,286 and 68,784.16

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Solution

The fourth proportional to 119,764.40, 165,286 and 68,784.16 is: 94,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,764.40 : 165,286 = 68,784.16 : x
  2. Step 2: Convert to fraction form
    119,764.40/165,286 = 68,784.16/x
  3. Step 3: Cross multiply
    119,764.40x = 165,286 × 68,784.16
  4. Step 4: Simplify right side
    119,764.40x = 11,369,058,669.76
  5. Step 5: Solve for x
    x = 11,369,058,669.76/119,764.40
  6. Step 6: Final answer
    x = 94,928.53

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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.