Home / 215,041.50-322,360.64-72,787.22

Finding the Fourth Proportional to 215,041.50, 322,360.64 and 72,787.22

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Solution

The fourth proportional to 215,041.50, 322,360.64 and 72,787.22 is: 109,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,041.50 : 322,360.64 = 72,787.22 : x
  2. Step 2: Convert to fraction form
    215,041.50/322,360.64 = 72,787.22/x
  3. Step 3: Cross multiply
    215,041.50x = 322,360.64 × 72,787.22
  4. Step 4: Simplify right side
    215,041.50x = 23,463,734,823.02
  5. Step 5: Solve for x
    x = 23,463,734,823.02/215,041.50
  6. Step 6: Final answer
    x = 109,112.59

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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.