Home / 120,085.27-165,726.25-66,369.13

Finding the Fourth Proportional to 120,085.27, 165,726.25 and 66,369.13

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Solution

The fourth proportional to 120,085.27, 165,726.25 and 66,369.13 is: 91,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,085.27 : 165,726.25 = 66,369.13 : x
  2. Step 2: Convert to fraction form
    120,085.27/165,726.25 = 66,369.13/x
  3. Step 3: Cross multiply
    120,085.27x = 165,726.25 × 66,369.13
  4. Step 4: Simplify right side
    120,085.27x = 10,999,106,520.28
  5. Step 5: Solve for x
    x = 10,999,106,520.28/120,085.27
  6. Step 6: Final answer
    x = 91,594.14

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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.