Home / 115,191.18-172,810.26-65,293.56

Finding the Fourth Proportional to 115,191.18, 172,810.26 and 65,293.56

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Solution

The fourth proportional to 115,191.18, 172,810.26 and 65,293.56 is: 97,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.18 : 172,810.26 = 65,293.56 : x
  2. Step 2: Convert to fraction form
    115,191.18/172,810.26 = 65,293.56/x
  3. Step 3: Cross multiply
    115,191.18x = 172,810.26 × 65,293.56
  4. Step 4: Simplify right side
    115,191.18x = 11,283,397,079.93
  5. Step 5: Solve for x
    x = 11,283,397,079.93/115,191.18
  6. Step 6: Final answer
    x = 97,953.65

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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.