Home / 169,440.05-253,994.77-80,669.69

Finding the Fourth Proportional to 169,440.05, 253,994.77 and 80,669.69

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Solution

The fourth proportional to 169,440.05, 253,994.77 and 80,669.69 is: 120,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,440.05 : 253,994.77 = 80,669.69 : x
  2. Step 2: Convert to fraction form
    169,440.05/253,994.77 = 80,669.69/x
  3. Step 3: Cross multiply
    169,440.05x = 253,994.77 × 80,669.69
  4. Step 4: Simplify right side
    169,440.05x = 20,489,679,357.52
  5. Step 5: Solve for x
    x = 20,489,679,357.52/169,440.05
  6. Step 6: Final answer
    x = 120,925.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.