Home / 143,054.97-197,406.66-89,336.76

Finding the Fourth Proportional to 143,054.97, 197,406.66 and 89,336.76

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Solution

The fourth proportional to 143,054.97, 197,406.66 and 89,336.76 is: 123,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,054.97 : 197,406.66 = 89,336.76 : x
  2. Step 2: Convert to fraction form
    143,054.97/197,406.66 = 89,336.76/x
  3. Step 3: Cross multiply
    143,054.97x = 197,406.66 × 89,336.76
  4. Step 4: Simplify right side
    143,054.97x = 17,635,671,406.82
  5. Step 5: Solve for x
    x = 17,635,671,406.82/143,054.97
  6. Step 6: Final answer
    x = 123,278.98

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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.