Home / 119,858.16-165,404.10-66,143.18

Finding the Fourth Proportional to 119,858.16, 165,404.10 and 66,143.18

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Solution

The fourth proportional to 119,858.16, 165,404.10 and 66,143.18 is: 91,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,858.16 : 165,404.10 = 66,143.18 : x
  2. Step 2: Convert to fraction form
    119,858.16/165,404.10 = 66,143.18/x
  3. Step 3: Cross multiply
    119,858.16x = 165,404.10 × 66,143.18
  4. Step 4: Simplify right side
    119,858.16x = 10,940,352,332.02
  5. Step 5: Solve for x
    x = 10,940,352,332.02/119,858.16
  6. Step 6: Final answer
    x = 91,277.49

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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.