Home / 127,787.85-191,615.18-47,760.03

Finding the Fourth Proportional to 127,787.85, 191,615.18 and 47,760.03

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Solution

The fourth proportional to 127,787.85, 191,615.18 and 47,760.03 is: 71,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,787.85 : 191,615.18 = 47,760.03 : x
  2. Step 2: Convert to fraction form
    127,787.85/191,615.18 = 47,760.03/x
  3. Step 3: Cross multiply
    127,787.85x = 191,615.18 × 47,760.03
  4. Step 4: Simplify right side
    127,787.85x = 9,151,546,506.46
  5. Step 5: Solve for x
    x = 9,151,546,506.46/127,787.85
  6. Step 6: Final answer
    x = 71,615.15

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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.