Home / 126,878.93-190,257.61-42,615.70

Finding the Fourth Proportional to 126,878.93, 190,257.61 and 42,615.70

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Solution

The fourth proportional to 126,878.93, 190,257.61 and 42,615.70 is: 63,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,878.93 : 190,257.61 = 42,615.70 : x
  2. Step 2: Convert to fraction form
    126,878.93/190,257.61 = 42,615.70/x
  3. Step 3: Cross multiply
    126,878.93x = 190,257.61 × 42,615.70
  4. Step 4: Simplify right side
    126,878.93x = 8,107,961,230.48
  5. Step 5: Solve for x
    x = 8,107,961,230.48/126,878.93
  6. Step 6: Final answer
    x = 63,903.13

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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.