Home / 126,933.40-190,169.70-103,432.60

Finding the Fourth Proportional to 126,933.40, 190,169.70 and 103,432.60

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Solution

The fourth proportional to 126,933.40, 190,169.70 and 103,432.60 is: 154,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,933.40 : 190,169.70 = 103,432.60 : x
  2. Step 2: Convert to fraction form
    126,933.40/190,169.70 = 103,432.60/x
  3. Step 3: Cross multiply
    126,933.40x = 190,169.70 × 103,432.60
  4. Step 4: Simplify right side
    126,933.40x = 19,669,746,512.22
  5. Step 5: Solve for x
    x = 19,669,746,512.22/126,933.40
  6. Step 6: Final answer
    x = 154,961.16

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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.