Home / 119,855.99-165,402.18-66,142.94

Finding the Fourth Proportional to 119,855.99, 165,402.18 and 66,142.94

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Solution

The fourth proportional to 119,855.99, 165,402.18 and 66,142.94 is: 91,277.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,855.99 : 165,402.18 = 66,142.94 : x
  2. Step 2: Convert to fraction form
    119,855.99/165,402.18 = 66,142.94/x
  3. Step 3: Cross multiply
    119,855.99x = 165,402.18 × 66,142.94
  4. Step 4: Simplify right side
    119,855.99x = 10,940,185,640.60
  5. Step 5: Solve for x
    x = 10,940,185,640.60/119,855.99
  6. Step 6: Final answer
    x = 91,277.76

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1.5x scale

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.