Home / 121,846.77-168,155.10-68,131.62

Finding the Fourth Proportional to 121,846.77, 168,155.10 and 68,131.62

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Solution

The fourth proportional to 121,846.77, 168,155.10 and 68,131.62 is: 94,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,846.77 : 168,155.10 = 68,131.62 : x
  2. Step 2: Convert to fraction form
    121,846.77/168,155.10 = 68,131.62/x
  3. Step 3: Cross multiply
    121,846.77x = 168,155.10 × 68,131.62
  4. Step 4: Simplify right side
    121,846.77x = 11,456,679,374.26
  5. Step 5: Solve for x
    x = 11,456,679,374.26/121,846.77
  6. Step 6: Final answer
    x = 94,025.30

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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.