Home / 225,739.60-311,552.38-139,726.18

Finding the Fourth Proportional to 225,739.60, 311,552.38 and 139,726.18

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Solution

The fourth proportional to 225,739.60, 311,552.38 and 139,726.18 is: 192,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,739.60 : 311,552.38 = 139,726.18 : x
  2. Step 2: Convert to fraction form
    225,739.60/311,552.38 = 139,726.18/x
  3. Step 3: Cross multiply
    225,739.60x = 311,552.38 × 139,726.18
  4. Step 4: Simplify right side
    225,739.60x = 43,532,023,927.31
  5. Step 5: Solve for x
    x = 43,532,023,927.31/225,739.60
  6. Step 6: Final answer
    x = 192,841.77

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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.