Home / 250,216.12-345,301.68-137,039.68

Finding the Fourth Proportional to 250,216.12, 345,301.68 and 137,039.68

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Solution

The fourth proportional to 250,216.12, 345,301.68 and 137,039.68 is: 189,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,216.12 : 345,301.68 = 137,039.68 : x
  2. Step 2: Convert to fraction form
    250,216.12/345,301.68 = 137,039.68/x
  3. Step 3: Cross multiply
    250,216.12x = 345,301.68 × 137,039.68
  4. Step 4: Simplify right side
    250,216.12x = 47,320,031,730.66
  5. Step 5: Solve for x
    x = 47,320,031,730.66/250,216.12
  6. Step 6: Final answer
    x = 189,116.64

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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.