Home / 220,011.54-330,083.73-91,990.04

Finding the Fourth Proportional to 220,011.54, 330,083.73 and 91,990.04

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Solution

The fourth proportional to 220,011.54, 330,083.73 and 91,990.04 is: 138,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,011.54 : 330,083.73 = 91,990.04 : x
  2. Step 2: Convert to fraction form
    220,011.54/330,083.73 = 91,990.04/x
  3. Step 3: Cross multiply
    220,011.54x = 330,083.73 × 91,990.04
  4. Step 4: Simplify right side
    220,011.54x = 30,364,413,875.63
  5. Step 5: Solve for x
    x = 30,364,413,875.63/220,011.54
  6. Step 6: Final answer
    x = 138,012.82

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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.