Home / 126,869.16-190,306.83-42,630.54

Finding the Fourth Proportional to 126,869.16, 190,306.83 and 42,630.54

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Solution

The fourth proportional to 126,869.16, 190,306.83 and 42,630.54 is: 63,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,869.16 : 190,306.83 = 42,630.54 : x
  2. Step 2: Convert to fraction form
    126,869.16/190,306.83 = 42,630.54/x
  3. Step 3: Cross multiply
    126,869.16x = 190,306.83 × 42,630.54
  4. Step 4: Simplify right side
    126,869.16x = 8,112,882,928.59
  5. Step 5: Solve for x
    x = 8,112,882,928.59/126,869.16
  6. Step 6: Final answer
    x = 63,946.85

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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.