Home / 132,946.20-199,419.30-121,282.20

Finding the Fourth Proportional to 132,946.20, 199,419.30 and 121,282.20

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Solution

The fourth proportional to 132,946.20, 199,419.30 and 121,282.20 is: 181,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,946.20 : 199,419.30 = 121,282.20 : x
  2. Step 2: Convert to fraction form
    132,946.20/199,419.30 = 121,282.20/x
  3. Step 3: Cross multiply
    132,946.20x = 199,419.30 × 121,282.20
  4. Step 4: Simplify right side
    132,946.20x = 24,186,011,426.46
  5. Step 5: Solve for x
    x = 24,186,011,426.46/132,946.20
  6. Step 6: Final answer
    x = 181,923.30

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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.