Home / 124,945.79-172,447.39-73,986.81

Finding the Fourth Proportional to 124,945.79, 172,447.39 and 73,986.81

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Solution

The fourth proportional to 124,945.79, 172,447.39 and 73,986.81 is: 102,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,945.79 : 172,447.39 = 73,986.81 : x
  2. Step 2: Convert to fraction form
    124,945.79/172,447.39 = 73,986.81/x
  3. Step 3: Cross multiply
    124,945.79x = 172,447.39 × 73,986.81
  4. Step 4: Simplify right side
    124,945.79x = 12,758,832,278.93
  5. Step 5: Solve for x
    x = 12,758,832,278.93/124,945.79
  6. Step 6: Final answer
    x = 102,114.94

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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.