Home / 115,448.68-173,121.18-53,137

Finding the Fourth Proportional to 115,448.68, 173,121.18 and 53,137

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Solution

The fourth proportional to 115,448.68, 173,121.18 and 53,137 is: 79,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,448.68 : 173,121.18 = 53,137 : x
  2. Step 2: Convert to fraction form
    115,448.68/173,121.18 = 53,137/x
  3. Step 3: Cross multiply
    115,448.68x = 173,121.18 × 53,137
  4. Step 4: Simplify right side
    115,448.68x = 9,199,140,141.66
  5. Step 5: Solve for x
    x = 9,199,140,141.66/115,448.68
  6. Step 6: Final answer
    x = 79,681.64

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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.