Home / 215,056.75-322,383.62-72,802.53

Finding the Fourth Proportional to 215,056.75, 322,383.62 and 72,802.53

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Solution

The fourth proportional to 215,056.75, 322,383.62 and 72,802.53 is: 109,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,056.75 : 322,383.62 = 72,802.53 : x
  2. Step 2: Convert to fraction form
    215,056.75/322,383.62 = 72,802.53/x
  3. Step 3: Cross multiply
    215,056.75x = 322,383.62 × 72,802.53
  4. Step 4: Simplify right side
    215,056.75x = 23,470,341,554.64
  5. Step 5: Solve for x
    x = 23,470,341,554.64/215,056.75
  6. Step 6: Final answer
    x = 109,135.57

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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.