Home / 127,014.55-190,148.11-84,789.91

Finding the Fourth Proportional to 127,014.55, 190,148.11 and 84,789.91

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Solution

The fourth proportional to 127,014.55, 190,148.11 and 84,789.91 is: 126,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,014.55 : 190,148.11 = 84,789.91 : x
  2. Step 2: Convert to fraction form
    127,014.55/190,148.11 = 84,789.91/x
  3. Step 3: Cross multiply
    127,014.55x = 190,148.11 × 84,789.91
  4. Step 4: Simplify right side
    127,014.55x = 16,122,641,133.57
  5. Step 5: Solve for x
    x = 16,122,641,133.57/127,014.55
  6. Step 6: Final answer
    x = 126,935.39

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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.