Home / 203,145.60-304,891.20-90,998.40

Finding the Fourth Proportional to 203,145.60, 304,891.20 and 90,998.40

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Solution

The fourth proportional to 203,145.60, 304,891.20 and 90,998.40 is: 136,575.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,145.60 : 304,891.20 = 90,998.40 : x
  2. Step 2: Convert to fraction form
    203,145.60/304,891.20 = 90,998.40/x
  3. Step 3: Cross multiply
    203,145.60x = 304,891.20 × 90,998.40
  4. Step 4: Simplify right side
    203,145.60x = 27,744,611,374.08
  5. Step 5: Solve for x
    x = 27,744,611,374.08/203,145.60
  6. Step 6: Final answer
    x = 136,575.01

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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.