Home / 108,148.43-162,222.60-78,753.32

Finding the Fourth Proportional to 108,148.43, 162,222.60 and 78,753.32

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Solution

The fourth proportional to 108,148.43, 162,222.60 and 78,753.32 is: 118,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,148.43 : 162,222.60 = 78,753.32 : x
  2. Step 2: Convert to fraction form
    108,148.43/162,222.60 = 78,753.32/x
  3. Step 3: Cross multiply
    108,148.43x = 162,222.60 × 78,753.32
  4. Step 4: Simplify right side
    108,148.43x = 12,775,568,329.03
  5. Step 5: Solve for x
    x = 12,775,568,329.03/108,148.43
  6. Step 6: Final answer
    x = 118,129.95

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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.