Home / 215,385.21-323,126.00-65,637.23

Finding the Fourth Proportional to 215,385.21, 323,126.00 and 65,637.23

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Solution

The fourth proportional to 215,385.21, 323,126.00 and 65,637.23 is: 98,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,385.21 : 323,126.00 = 65,637.23 : x
  2. Step 2: Convert to fraction form
    215,385.21/323,126.00 = 65,637.23/x
  3. Step 3: Cross multiply
    215,385.21x = 323,126.00 × 65,637.23
  4. Step 4: Simplify right side
    215,385.21x = 21,209,093,637.16
  5. Step 5: Solve for x
    x = 21,209,093,637.16/215,385.21
  6. Step 6: Final answer
    x = 98,470.52

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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.