Home / 149,217.73-205,923.81-84,691.24

Finding the Fourth Proportional to 149,217.73, 205,923.81 and 84,691.24

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Solution

The fourth proportional to 149,217.73, 205,923.81 and 84,691.24 is: 116,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,217.73 : 205,923.81 = 84,691.24 : x
  2. Step 2: Convert to fraction form
    149,217.73/205,923.81 = 84,691.24/x
  3. Step 3: Cross multiply
    149,217.73x = 205,923.81 × 84,691.24
  4. Step 4: Simplify right side
    149,217.73x = 17,439,942,814.42
  5. Step 5: Solve for x
    x = 17,439,942,814.42/149,217.73
  6. Step 6: Final answer
    x = 116,875.81

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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.