Home / 129,911.60-194,867.40-103,667.60

Finding the Fourth Proportional to 129,911.60, 194,867.40 and 103,667.60

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Solution

The fourth proportional to 129,911.60, 194,867.40 and 103,667.60 is: 155,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,911.60 : 194,867.40 = 103,667.60 : x
  2. Step 2: Convert to fraction form
    129,911.60/194,867.40 = 103,667.60/x
  3. Step 3: Cross multiply
    129,911.60x = 194,867.40 × 103,667.60
  4. Step 4: Simplify right side
    129,911.60x = 20,201,435,676.24
  5. Step 5: Solve for x
    x = 20,201,435,676.24/129,911.60
  6. Step 6: Final answer
    x = 155,501.40

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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.