Home / 102,775.15-154,189.32-31,696.22

Finding the Fourth Proportional to 102,775.15, 154,189.32 and 31,696.22

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Solution

The fourth proportional to 102,775.15, 154,189.32 and 31,696.22 is: 47,552.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,775.15 : 154,189.32 = 31,696.22 : x
  2. Step 2: Convert to fraction form
    102,775.15/154,189.32 = 31,696.22/x
  3. Step 3: Cross multiply
    102,775.15x = 154,189.32 × 31,696.22
  4. Step 4: Simplify right side
    102,775.15x = 4,887,218,294.37
  5. Step 5: Solve for x
    x = 4,887,218,294.37/102,775.15
  6. Step 6: Final answer
    x = 47,552.53

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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.