Home / 108,189.22-162,283.90-70,780.72

Finding the Fourth Proportional to 108,189.22, 162,283.90 and 70,780.72

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Solution

The fourth proportional to 108,189.22, 162,283.90 and 70,780.72 is: 106,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,189.22 : 162,283.90 = 70,780.72 : x
  2. Step 2: Convert to fraction form
    108,189.22/162,283.90 = 70,780.72/x
  3. Step 3: Cross multiply
    108,189.22x = 162,283.90 × 70,780.72
  4. Step 4: Simplify right side
    108,189.22x = 11,486,571,286.41
  5. Step 5: Solve for x
    x = 11,486,571,286.41/108,189.22
  6. Step 6: Final answer
    x = 106,171.13

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1.5x scale

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.