Home / 100,214.29-138,318.48-62,481.25

Finding the Fourth Proportional to 100,214.29, 138,318.48 and 62,481.25

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Solution

The fourth proportional to 100,214.29, 138,318.48 and 62,481.25 is: 86,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,214.29 : 138,318.48 = 62,481.25 : x
  2. Step 2: Convert to fraction form
    100,214.29/138,318.48 = 62,481.25/x
  3. Step 3: Cross multiply
    100,214.29x = 138,318.48 × 62,481.25
  4. Step 4: Simplify right side
    100,214.29x = 8,642,311,528.50
  5. Step 5: Solve for x
    x = 8,642,311,528.50/100,214.29
  6. Step 6: Final answer
    x = 86,238.32

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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.