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Finding the Fourth Proportional to 101,324.28, 139,854.60 and 58,308.60

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Solution

The fourth proportional to 101,324.28, 139,854.60 and 58,308.60 is: 80,481.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,324.28 : 139,854.60 = 58,308.60 : x
  2. Step 2: Convert to fraction form
    101,324.28/139,854.60 = 58,308.60/x
  3. Step 3: Cross multiply
    101,324.28x = 139,854.60 × 58,308.60
  4. Step 4: Simplify right side
    101,324.28x = 8,154,725,929.56
  5. Step 5: Solve for x
    x = 8,154,725,929.56/101,324.28
  6. Step 6: Final answer
    x = 80,481.46

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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.