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Finding the Fourth Proportional to 119,661.26, 165,130.51 and 65,945.13

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Solution

The fourth proportional to 119,661.26, 165,130.51 and 65,945.13 is: 91,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,661.26 : 165,130.51 = 65,945.13 : x
  2. Step 2: Convert to fraction form
    119,661.26/165,130.51 = 65,945.13/x
  3. Step 3: Cross multiply
    119,661.26x = 165,130.51 × 65,945.13
  4. Step 4: Simplify right side
    119,661.26x = 10,889,552,948.92
  5. Step 5: Solve for x
    x = 10,889,552,948.92/119,661.26
  6. Step 6: Final answer
    x = 91,003.16

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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.