Home / 115,205.87-172,792.40-36,309.84

Finding the Fourth Proportional to 115,205.87, 172,792.40 and 36,309.84

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Solution

The fourth proportional to 115,205.87, 172,792.40 and 36,309.84 is: 54,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.87 : 172,792.40 = 36,309.84 : x
  2. Step 2: Convert to fraction form
    115,205.87/172,792.40 = 36,309.84/x
  3. Step 3: Cross multiply
    115,205.87x = 172,792.40 × 36,309.84
  4. Step 4: Simplify right side
    115,205.87x = 6,274,064,215.67
  5. Step 5: Solve for x
    x = 6,274,064,215.67/115,205.87
  6. Step 6: Final answer
    x = 54,459.59

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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.