Home / 119,861.44-165,408.64-66,146.40

Finding the Fourth Proportional to 119,861.44, 165,408.64 and 66,146.40

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Solution

The fourth proportional to 119,861.44, 165,408.64 and 66,146.40 is: 91,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,861.44 : 165,408.64 = 66,146.40 : x
  2. Step 2: Convert to fraction form
    119,861.44/165,408.64 = 66,146.40/x
  3. Step 3: Cross multiply
    119,861.44x = 165,408.64 × 66,146.40
  4. Step 4: Simplify right side
    119,861.44x = 10,941,186,064.90
  5. Step 5: Solve for x
    x = 10,941,186,064.90/119,861.44
  6. Step 6: Final answer
    x = 91,281.95

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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.