Home / 250,159.20-345,219.12-136,980.96

Finding the Fourth Proportional to 250,159.20, 345,219.12 and 136,980.96

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Solution

The fourth proportional to 250,159.20, 345,219.12 and 136,980.96 is: 189,033.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,159.20 : 345,219.12 = 136,980.96 : x
  2. Step 2: Convert to fraction form
    250,159.20/345,219.12 = 136,980.96/x
  3. Step 3: Cross multiply
    250,159.20x = 345,219.12 × 136,980.96
  4. Step 4: Simplify right side
    250,159.20x = 47,288,446,467.96
  5. Step 5: Solve for x
    x = 47,288,446,467.96/250,159.20
  6. Step 6: Final answer
    x = 189,033.41

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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.