Home / 109,998.12-164,913.42-60,120.84

Finding the Fourth Proportional to 109,998.12, 164,913.42 and 60,120.84

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Solution

The fourth proportional to 109,998.12, 164,913.42 and 60,120.84 is: 90,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,998.12 : 164,913.42 = 60,120.84 : x
  2. Step 2: Convert to fraction form
    109,998.12/164,913.42 = 60,120.84/x
  3. Step 3: Cross multiply
    109,998.12x = 164,913.42 × 60,120.84
  4. Step 4: Simplify right side
    109,998.12x = 9,914,733,337.67
  5. Step 5: Solve for x
    x = 9,914,733,337.67/109,998.12
  6. Step 6: Final answer
    x = 90,135.48

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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.