Home / 199,199.64-274,909.10-121,708.46

Finding the Fourth Proportional to 199,199.64, 274,909.10 and 121,708.46

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Solution

The fourth proportional to 199,199.64, 274,909.10 and 121,708.46 is: 167,965.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,199.64 : 274,909.10 = 121,708.46 : x
  2. Step 2: Convert to fraction form
    199,199.64/274,909.10 = 121,708.46/x
  3. Step 3: Cross multiply
    199,199.64x = 274,909.10 × 121,708.46
  4. Step 4: Simplify right side
    199,199.64x = 33,458,763,200.99
  5. Step 5: Solve for x
    x = 33,458,763,200.99/199,199.64
  6. Step 6: Final answer
    x = 167,965.98

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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.