Home / 103,481.10-155,221.65-93,639.60

Finding the Fourth Proportional to 103,481.10, 155,221.65 and 93,639.60

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Solution

The fourth proportional to 103,481.10, 155,221.65 and 93,639.60 is: 140,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,481.10 : 155,221.65 = 93,639.60 : x
  2. Step 2: Convert to fraction form
    103,481.10/155,221.65 = 93,639.60/x
  3. Step 3: Cross multiply
    103,481.10x = 155,221.65 × 93,639.60
  4. Step 4: Simplify right side
    103,481.10x = 14,534,893,217.34
  5. Step 5: Solve for x
    x = 14,534,893,217.34/103,481.10
  6. Step 6: Final answer
    x = 140,459.40

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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.