Home / 163,138.92-225,228.24-102,761.32

Finding the Fourth Proportional to 163,138.92, 225,228.24 and 102,761.32

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Solution

The fourth proportional to 163,138.92, 225,228.24 and 102,761.32 is: 141,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,138.92 : 225,228.24 = 102,761.32 : x
  2. Step 2: Convert to fraction form
    163,138.92/225,228.24 = 102,761.32/x
  3. Step 3: Cross multiply
    163,138.92x = 225,228.24 × 102,761.32
  4. Step 4: Simplify right side
    163,138.92x = 23,144,751,139.86
  5. Step 5: Solve for x
    x = 23,144,751,139.86/163,138.92
  6. Step 6: Final answer
    x = 141,871.42

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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.