Home / 218,163.32-301,061.38-121,366.70

Finding the Fourth Proportional to 218,163.32, 301,061.38 and 121,366.70

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Solution

The fourth proportional to 218,163.32, 301,061.38 and 121,366.70 is: 167,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,163.32 : 301,061.38 = 121,366.70 : x
  2. Step 2: Convert to fraction form
    218,163.32/301,061.38 = 121,366.70/x
  3. Step 3: Cross multiply
    218,163.32x = 301,061.38 × 121,366.70
  4. Step 4: Simplify right side
    218,163.32x = 36,538,825,581.21
  5. Step 5: Solve for x
    x = 36,538,825,581.21/218,163.32
  6. Step 6: Final answer
    x = 167,483.82

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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.