Home / 115,050.90-172,600.99-65,154.58

Finding the Fourth Proportional to 115,050.90, 172,600.99 and 65,154.58

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Solution

The fourth proportional to 115,050.90, 172,600.99 and 65,154.58 is: 97,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,050.90 : 172,600.99 = 65,154.58 : x
  2. Step 2: Convert to fraction form
    115,050.90/172,600.99 = 65,154.58/x
  3. Step 3: Cross multiply
    115,050.90x = 172,600.99 × 65,154.58
  4. Step 4: Simplify right side
    115,050.90x = 11,245,745,011.03
  5. Step 5: Solve for x
    x = 11,245,745,011.03/115,050.90
  6. Step 6: Final answer
    x = 97,745.82

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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.