Home / 115,115.51-172,696.68-48,555.87

Finding the Fourth Proportional to 115,115.51, 172,696.68 and 48,555.87

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Solution

The fourth proportional to 115,115.51, 172,696.68 and 48,555.87 is: 72,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,115.51 : 172,696.68 = 48,555.87 : x
  2. Step 2: Convert to fraction form
    115,115.51/172,696.68 = 48,555.87/x
  3. Step 3: Cross multiply
    115,115.51x = 172,696.68 × 48,555.87
  4. Step 4: Simplify right side
    115,115.51x = 8,385,437,543.51
  5. Step 5: Solve for x
    x = 8,385,437,543.51/115,115.51
  6. Step 6: Final answer
    x = 72,843.68

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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.