Home / 126,865.39-190,319.97-42,633.64

Finding the Fourth Proportional to 126,865.39, 190,319.97 and 42,633.64

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Solution

The fourth proportional to 126,865.39, 190,319.97 and 42,633.64 is: 63,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,865.39 : 190,319.97 = 42,633.64 : x
  2. Step 2: Convert to fraction form
    126,865.39/190,319.97 = 42,633.64/x
  3. Step 3: Cross multiply
    126,865.39x = 190,319.97 × 42,633.64
  4. Step 4: Simplify right side
    126,865.39x = 8,114,033,085.79
  5. Step 5: Solve for x
    x = 8,114,033,085.79/126,865.39
  6. Step 6: Final answer
    x = 63,957.81

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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.