Home / 108,272.20-162,408.30-70,947.40

Finding the Fourth Proportional to 108,272.20, 162,408.30 and 70,947.40

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Solution

The fourth proportional to 108,272.20, 162,408.30 and 70,947.40 is: 106,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,272.20 : 162,408.30 = 70,947.40 : x
  2. Step 2: Convert to fraction form
    108,272.20/162,408.30 = 70,947.40/x
  3. Step 3: Cross multiply
    108,272.20x = 162,408.30 × 70,947.40
  4. Step 4: Simplify right side
    108,272.20x = 11,522,446,623.42
  5. Step 5: Solve for x
    x = 11,522,446,623.42/108,272.20
  6. Step 6: Final answer
    x = 106,421.10

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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.