Home / 223,278.80-334,929.15-90,142.43

Finding the Fourth Proportional to 223,278.80, 334,929.15 and 90,142.43

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Solution

The fourth proportional to 223,278.80, 334,929.15 and 90,142.43 is: 135,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,278.80 : 334,929.15 = 90,142.43 : x
  2. Step 2: Convert to fraction form
    223,278.80/334,929.15 = 90,142.43/x
  3. Step 3: Cross multiply
    223,278.80x = 334,929.15 × 90,142.43
  4. Step 4: Simplify right side
    223,278.80x = 30,191,325,784.19
  5. Step 5: Solve for x
    x = 30,191,325,784.19/223,278.80
  6. Step 6: Final answer
    x = 135,218.06

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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.