Home / 126,780.52-190,285.98-67,666.60

Finding the Fourth Proportional to 126,780.52, 190,285.98 and 67,666.60

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Solution

The fourth proportional to 126,780.52, 190,285.98 and 67,666.60 is: 101,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,780.52 : 190,285.98 = 67,666.60 : x
  2. Step 2: Convert to fraction form
    126,780.52/190,285.98 = 67,666.60/x
  3. Step 3: Cross multiply
    126,780.52x = 190,285.98 × 67,666.60
  4. Step 4: Simplify right side
    126,780.52x = 12,876,005,294.27
  5. Step 5: Solve for x
    x = 12,876,005,294.27/126,780.52
  6. Step 6: Final answer
    x = 101,561.39

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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.