Home / 124,372.38-171,661.56-79,041.51

Finding the Fourth Proportional to 124,372.38, 171,661.56 and 79,041.51

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Solution

The fourth proportional to 124,372.38, 171,661.56 and 79,041.51 is: 109,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,372.38 : 171,661.56 = 79,041.51 : x
  2. Step 2: Convert to fraction form
    124,372.38/171,661.56 = 79,041.51/x
  3. Step 3: Cross multiply
    124,372.38x = 171,661.56 × 79,041.51
  4. Step 4: Simplify right side
    124,372.38x = 13,568,388,911.36
  5. Step 5: Solve for x
    x = 13,568,388,911.36/124,372.38
  6. Step 6: Final answer
    x = 109,094.87

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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.