Home / 126,880.80-190,260.46-42,617.58

Finding the Fourth Proportional to 126,880.80, 190,260.46 and 42,617.58

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Solution

The fourth proportional to 126,880.80, 190,260.46 and 42,617.58 is: 63,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,880.80 : 190,260.46 = 42,617.58 : x
  2. Step 2: Convert to fraction form
    126,880.80/190,260.46 = 42,617.58/x
  3. Step 3: Cross multiply
    126,880.80x = 190,260.46 × 42,617.58
  4. Step 4: Simplify right side
    126,880.80x = 8,108,440,374.89
  5. Step 5: Solve for x
    x = 8,108,440,374.89/126,880.80
  6. Step 6: Final answer
    x = 63,905.97

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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.