Home / 126,142.08-188,999.02-76,117.07

Finding the Fourth Proportional to 126,142.08, 188,999.02 and 76,117.07

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Solution

The fourth proportional to 126,142.08, 188,999.02 and 76,117.07 is: 114,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,142.08 : 188,999.02 = 76,117.07 : x
  2. Step 2: Convert to fraction form
    126,142.08/188,999.02 = 76,117.07/x
  3. Step 3: Cross multiply
    126,142.08x = 188,999.02 × 76,117.07
  4. Step 4: Simplify right side
    126,142.08x = 14,386,051,635.27
  5. Step 5: Solve for x
    x = 14,386,051,635.27/126,142.08
  6. Step 6: Final answer
    x = 114,046.41

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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.