Home / 100,511.48-138,661.44-62,260.94

Finding the Fourth Proportional to 100,511.48, 138,661.44 and 62,260.94

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Solution

The fourth proportional to 100,511.48, 138,661.44 and 62,260.94 is: 85,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,511.48 : 138,661.44 = 62,260.94 : x
  2. Step 2: Convert to fraction form
    100,511.48/138,661.44 = 62,260.94/x
  3. Step 3: Cross multiply
    100,511.48x = 138,661.44 × 62,260.94
  4. Step 4: Simplify right side
    100,511.48x = 8,633,191,596.15
  5. Step 5: Solve for x
    x = 8,633,191,596.15/100,511.48
  6. Step 6: Final answer
    x = 85,892.59

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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.