Home / 115,429.05-173,153.43-40,542.66

Finding the Fourth Proportional to 115,429.05, 173,153.43 and 40,542.66

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Solution

The fourth proportional to 115,429.05, 173,153.43 and 40,542.66 is: 60,817.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,429.05 : 173,153.43 = 40,542.66 : x
  2. Step 2: Convert to fraction form
    115,429.05/173,153.43 = 40,542.66/x
  3. Step 3: Cross multiply
    115,429.05x = 173,153.43 × 40,542.66
  4. Step 4: Simplify right side
    115,429.05x = 7,020,100,640.32
  5. Step 5: Solve for x
    x = 7,020,100,640.32/115,429.05
  6. Step 6: Final answer
    x = 60,817.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.