Home / 115,049.90-172,599.49-65,153.58

Finding the Fourth Proportional to 115,049.90, 172,599.49 and 65,153.58

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Solution

The fourth proportional to 115,049.90, 172,599.49 and 65,153.58 is: 97,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,049.90 : 172,599.49 = 65,153.58 : x
  2. Step 2: Convert to fraction form
    115,049.90/172,599.49 = 65,153.58/x
  3. Step 3: Cross multiply
    115,049.90x = 172,599.49 × 65,153.58
  4. Step 4: Simplify right side
    115,049.90x = 11,245,474,679.67
  5. Step 5: Solve for x
    x = 11,245,474,679.67/115,049.90
  6. Step 6: Final answer
    x = 97,744.32

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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.