Home / 108,771.12-163,222.38-38,645.10

Finding the Fourth Proportional to 108,771.12, 163,222.38 and 38,645.10

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Solution

The fourth proportional to 108,771.12, 163,222.38 and 38,645.10 is: 57,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,771.12 : 163,222.38 = 38,645.10 : x
  2. Step 2: Convert to fraction form
    108,771.12/163,222.38 = 38,645.10/x
  3. Step 3: Cross multiply
    108,771.12x = 163,222.38 × 38,645.10
  4. Step 4: Simplify right side
    108,771.12x = 6,307,745,197.34
  5. Step 5: Solve for x
    x = 6,307,745,197.34/108,771.12
  6. Step 6: Final answer
    x = 57,990.99

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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.