Home / 121,420.11-167,465.54-107,822.46

Finding the Fourth Proportional to 121,420.11, 167,465.54 and 107,822.46

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Solution

The fourth proportional to 121,420.11, 167,465.54 and 107,822.46 is: 148,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,420.11 : 167,465.54 = 107,822.46 : x
  2. Step 2: Convert to fraction form
    121,420.11/167,465.54 = 107,822.46/x
  3. Step 3: Cross multiply
    121,420.11x = 167,465.54 × 107,822.46
  4. Step 4: Simplify right side
    121,420.11x = 18,056,546,757.58
  5. Step 5: Solve for x
    x = 18,056,546,757.58/121,420.11
  6. Step 6: Final answer
    x = 148,711.34

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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.