Home / 109,691.40-164,537.10-30,808.20

Finding the Fourth Proportional to 109,691.40, 164,537.10 and 30,808.20

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Solution

The fourth proportional to 109,691.40, 164,537.10 and 30,808.20 is: 46,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,691.40 : 164,537.10 = 30,808.20 : x
  2. Step 2: Convert to fraction form
    109,691.40/164,537.10 = 30,808.20/x
  3. Step 3: Cross multiply
    109,691.40x = 164,537.10 × 30,808.20
  4. Step 4: Simplify right side
    109,691.40x = 5,069,091,884.22
  5. Step 5: Solve for x
    x = 5,069,091,884.22/109,691.40
  6. Step 6: Final answer
    x = 46,212.30

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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.