Home / 120,744.36-166,740.66-77,799.24

Finding the Fourth Proportional to 120,744.36, 166,740.66 and 77,799.24

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Solution

The fourth proportional to 120,744.36, 166,740.66 and 77,799.24 is: 107,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,744.36 : 166,740.66 = 77,799.24 : x
  2. Step 2: Convert to fraction form
    120,744.36/166,740.66 = 77,799.24/x
  3. Step 3: Cross multiply
    120,744.36x = 166,740.66 × 77,799.24
  4. Step 4: Simplify right side
    120,744.36x = 12,972,296,625.10
  5. Step 5: Solve for x
    x = 12,972,296,625.10/120,744.36
  6. Step 6: Final answer
    x = 107,436.05

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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.