Home / 115,389.19-173,161.10-40,509.56

Finding the Fourth Proportional to 115,389.19, 173,161.10 and 40,509.56

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Solution

The fourth proportional to 115,389.19, 173,161.10 and 40,509.56 is: 60,791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,389.19 : 173,161.10 = 40,509.56 : x
  2. Step 2: Convert to fraction form
    115,389.19/173,161.10 = 40,509.56/x
  3. Step 3: Cross multiply
    115,389.19x = 173,161.10 × 40,509.56
  4. Step 4: Simplify right side
    115,389.19x = 7,014,679,302.40
  5. Step 5: Solve for x
    x = 7,014,679,302.40/115,389.19
  6. Step 6: Final answer
    x = 60,791.48

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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.