Home / 115,306.03-172,944.73-31,072.78

Finding the Fourth Proportional to 115,306.03, 172,944.73 and 31,072.78

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Solution

The fourth proportional to 115,306.03, 172,944.73 and 31,072.78 is: 46,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,306.03 : 172,944.73 = 31,072.78 : x
  2. Step 2: Convert to fraction form
    115,306.03/172,944.73 = 31,072.78/x
  3. Step 3: Cross multiply
    115,306.03x = 172,944.73 × 31,072.78
  4. Step 4: Simplify right side
    115,306.03x = 5,373,873,547.45
  5. Step 5: Solve for x
    x = 5,373,873,547.45/115,306.03
  6. Step 6: Final answer
    x = 46,605.31

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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.