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Finding the Fourth Proportional to 126,010.80, 173,892.96 and 69,424.20

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Solution

The fourth proportional to 126,010.80, 173,892.96 and 69,424.20 is: 95,804.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,010.80 : 173,892.96 = 69,424.20 : x
  2. Step 2: Convert to fraction form
    126,010.80/173,892.96 = 69,424.20/x
  3. Step 3: Cross multiply
    126,010.80x = 173,892.96 × 69,424.20
  4. Step 4: Simplify right side
    126,010.80x = 12,072,379,633.63
  5. Step 5: Solve for x
    x = 12,072,379,633.63/126,010.80
  6. Step 6: Final answer
    x = 95,804.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.