Home / 215,056.25-322,382.87-72,802.02

Finding the Fourth Proportional to 215,056.25, 322,382.87 and 72,802.02

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Solution

The fourth proportional to 215,056.25, 322,382.87 and 72,802.02 is: 109,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,056.25 : 322,382.87 = 72,802.02 : x
  2. Step 2: Convert to fraction form
    215,056.25/322,382.87 = 72,802.02/x
  3. Step 3: Cross multiply
    215,056.25x = 322,382.87 × 72,802.02
  4. Step 4: Simplify right side
    215,056.25x = 23,470,125,267.33
  5. Step 5: Solve for x
    x = 23,470,125,267.33/215,056.25
  6. Step 6: Final answer
    x = 109,134.82

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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.