Home / 108,170.20-162,088.06-84,421.44

Finding the Fourth Proportional to 108,170.20, 162,088.06 and 84,421.44

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Solution

The fourth proportional to 108,170.20, 162,088.06 and 84,421.44 is: 126,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,170.20 : 162,088.06 = 84,421.44 : x
  2. Step 2: Convert to fraction form
    108,170.20/162,088.06 = 84,421.44/x
  3. Step 3: Cross multiply
    108,170.20x = 162,088.06 × 84,421.44
  4. Step 4: Simplify right side
    108,170.20x = 13,683,707,432.01
  5. Step 5: Solve for x
    x = 13,683,707,432.01/108,170.20
  6. Step 6: Final answer
    x = 126,501.64

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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.