Home / 134,856.32-202,221.91-78,712.59

Finding the Fourth Proportional to 134,856.32, 202,221.91 and 78,712.59

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Solution

The fourth proportional to 134,856.32, 202,221.91 and 78,712.59 is: 118,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,856.32 : 202,221.91 = 78,712.59 : x
  2. Step 2: Convert to fraction form
    134,856.32/202,221.91 = 78,712.59/x
  3. Step 3: Cross multiply
    134,856.32x = 202,221.91 × 78,712.59
  4. Step 4: Simplify right side
    134,856.32x = 15,917,410,290.85
  5. Step 5: Solve for x
    x = 15,917,410,290.85/134,856.32
  6. Step 6: Final answer
    x = 118,032.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.