Home / 115,003.11-172,430.79-75,514.10

Finding the Fourth Proportional to 115,003.11, 172,430.79 and 75,514.10

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Solution

The fourth proportional to 115,003.11, 172,430.79 and 75,514.10 is: 113,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,003.11 : 172,430.79 = 75,514.10 : x
  2. Step 2: Convert to fraction form
    115,003.11/172,430.79 = 75,514.10/x
  3. Step 3: Cross multiply
    115,003.11x = 172,430.79 × 75,514.10
  4. Step 4: Simplify right side
    115,003.11x = 13,020,955,056.99
  5. Step 5: Solve for x
    x = 13,020,955,056.99/115,003.11
  6. Step 6: Final answer
    x = 113,222.63

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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.