Home / 197,283.20-272,186.58-120,722.40

Finding the Fourth Proportional to 197,283.20, 272,186.58 and 120,722.40

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Solution

The fourth proportional to 197,283.20, 272,186.58 and 120,722.40 is: 166,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,283.20 : 272,186.58 = 120,722.40 : x
  2. Step 2: Convert to fraction form
    197,283.20/272,186.58 = 120,722.40/x
  3. Step 3: Cross multiply
    197,283.20x = 272,186.58 × 120,722.40
  4. Step 4: Simplify right side
    197,283.20x = 32,859,016,959.04
  5. Step 5: Solve for x
    x = 32,859,016,959.04/197,283.20
  6. Step 6: Final answer
    x = 166,557.61

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1.5x scale

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.