Home / 108,965.07-163,456.99-30,079.30

Finding the Fourth Proportional to 108,965.07, 163,456.99 and 30,079.30

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Solution

The fourth proportional to 108,965.07, 163,456.99 and 30,079.30 is: 45,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,965.07 : 163,456.99 = 30,079.30 : x
  2. Step 2: Convert to fraction form
    108,965.07/163,456.99 = 30,079.30/x
  3. Step 3: Cross multiply
    108,965.07x = 163,456.99 × 30,079.30
  4. Step 4: Simplify right side
    108,965.07x = 4,916,671,839.31
  5. Step 5: Solve for x
    x = 4,916,671,839.31/108,965.07
  6. Step 6: Final answer
    x = 45,121.54

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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.