Home / 120,004.02-165,625.41-91,418.10

Finding the Fourth Proportional to 120,004.02, 165,625.41 and 91,418.10

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Solution

The fourth proportional to 120,004.02, 165,625.41 and 91,418.10 is: 126,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,004.02 : 165,625.41 = 91,418.10 : x
  2. Step 2: Convert to fraction form
    120,004.02/165,625.41 = 91,418.10/x
  3. Step 3: Cross multiply
    120,004.02x = 165,625.41 × 91,418.10
  4. Step 4: Simplify right side
    120,004.02x = 15,141,160,293.92
  5. Step 5: Solve for x
    x = 15,141,160,293.92/120,004.02
  6. Step 6: Final answer
    x = 126,172.11

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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.