Home / 118,944.32-179,129.21-108,315.50

Finding the Fourth Proportional to 118,944.32, 179,129.21 and 108,315.50

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Solution

The fourth proportional to 118,944.32, 179,129.21 and 108,315.50 is: 163,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,944.32 : 179,129.21 = 108,315.50 : x
  2. Step 2: Convert to fraction form
    118,944.32/179,129.21 = 108,315.50/x
  3. Step 3: Cross multiply
    118,944.32x = 179,129.21 × 108,315.50
  4. Step 4: Simplify right side
    118,944.32x = 19,402,468,508.53
  5. Step 5: Solve for x
    x = 19,402,468,508.53/118,944.32
  6. Step 6: Final answer
    x = 163,122.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.