Home / 109,526.20-164,192.10-72,104.20

Finding the Fourth Proportional to 109,526.20, 164,192.10 and 72,104.20

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Solution

The fourth proportional to 109,526.20, 164,192.10 and 72,104.20 is: 108,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,526.20 : 164,192.10 = 72,104.20 : x
  2. Step 2: Convert to fraction form
    109,526.20/164,192.10 = 72,104.20/x
  3. Step 3: Cross multiply
    109,526.20x = 164,192.10 × 72,104.20
  4. Step 4: Simplify right side
    109,526.20x = 11,838,940,016.82
  5. Step 5: Solve for x
    x = 11,838,940,016.82/109,526.20
  6. Step 6: Final answer
    x = 108,092.31

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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.