Home / 143,088.66-197,463.11-89,404.79

Finding the Fourth Proportional to 143,088.66, 197,463.11 and 89,404.79

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Solution

The fourth proportional to 143,088.66, 197,463.11 and 89,404.79 is: 123,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,088.66 : 197,463.11 = 89,404.79 : x
  2. Step 2: Convert to fraction form
    143,088.66/197,463.11 = 89,404.79/x
  3. Step 3: Cross multiply
    143,088.66x = 197,463.11 × 89,404.79
  4. Step 4: Simplify right side
    143,088.66x = 17,654,146,447.96
  5. Step 5: Solve for x
    x = 17,654,146,447.96/143,088.66
  6. Step 6: Final answer
    x = 123,379.07

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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.