Home / 250,708.20-345,956.70-137,530.98

Finding the Fourth Proportional to 250,708.20, 345,956.70 and 137,530.98

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Solution

The fourth proportional to 250,708.20, 345,956.70 and 137,530.98 is: 189,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,708.20 : 345,956.70 = 137,530.98 : x
  2. Step 2: Convert to fraction form
    250,708.20/345,956.70 = 137,530.98/x
  3. Step 3: Cross multiply
    250,708.20x = 345,956.70 × 137,530.98
  4. Step 4: Simplify right side
    250,708.20x = 47,579,763,988.57
  5. Step 5: Solve for x
    x = 47,579,763,988.57/250,708.20
  6. Step 6: Final answer
    x = 189,781.44

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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.