Home / 126,140.08-188,996.02-76,115.07

Finding the Fourth Proportional to 126,140.08, 188,996.02 and 76,115.07

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Solution

The fourth proportional to 126,140.08, 188,996.02 and 76,115.07 is: 114,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.08 : 188,996.02 = 76,115.07 : x
  2. Step 2: Convert to fraction form
    126,140.08/188,996.02 = 76,115.07/x
  3. Step 3: Cross multiply
    126,140.08x = 188,996.02 × 76,115.07
  4. Step 4: Simplify right side
    126,140.08x = 14,385,445,292.02
  5. Step 5: Solve for x
    x = 14,385,445,292.02/126,140.08
  6. Step 6: Final answer
    x = 114,043.41

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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.