Home / 108,259.20-162,561.60-78,883.20

Finding the Fourth Proportional to 108,259.20, 162,561.60 and 78,883.20

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Solution

The fourth proportional to 108,259.20, 162,561.60 and 78,883.20 is: 118,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,259.20 : 162,561.60 = 78,883.20 : x
  2. Step 2: Convert to fraction form
    108,259.20/162,561.60 = 78,883.20/x
  3. Step 3: Cross multiply
    108,259.20x = 162,561.60 × 78,883.20
  4. Step 4: Simplify right side
    108,259.20x = 12,823,379,205.12
  5. Step 5: Solve for x
    x = 12,823,379,205.12/108,259.20
  6. Step 6: Final answer
    x = 118,450.71

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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.