Home / 151,121.62-208,534.98-87,463.36

Finding the Fourth Proportional to 151,121.62, 208,534.98 and 87,463.36

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Solution

The fourth proportional to 151,121.62, 208,534.98 and 87,463.36 is: 120,692.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,121.62 : 208,534.98 = 87,463.36 : x
  2. Step 2: Convert to fraction form
    151,121.62/208,534.98 = 87,463.36/x
  3. Step 3: Cross multiply
    151,121.62x = 208,534.98 × 87,463.36
  4. Step 4: Simplify right side
    151,121.62x = 18,239,170,028.33
  5. Step 5: Solve for x
    x = 18,239,170,028.33/151,121.62
  6. Step 6: Final answer
    x = 120,692.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.