Home / 220,985.04-304,957.80-120,383.04

Finding the Fourth Proportional to 220,985.04, 304,957.80 and 120,383.04

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Solution

The fourth proportional to 220,985.04, 304,957.80 and 120,383.04 is: 166,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,985.04 : 304,957.80 = 120,383.04 : x
  2. Step 2: Convert to fraction form
    220,985.04/304,957.80 = 120,383.04/x
  3. Step 3: Cross multiply
    220,985.04x = 304,957.80 × 120,383.04
  4. Step 4: Simplify right side
    220,985.04x = 36,711,747,035.71
  5. Step 5: Solve for x
    x = 36,711,747,035.71/220,985.04
  6. Step 6: Final answer
    x = 166,127.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.