Home / 142,769.78-214,156.38-67,897.16

Finding the Fourth Proportional to 142,769.78, 214,156.38 and 67,897.16

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Solution

The fourth proportional to 142,769.78, 214,156.38 and 67,897.16 is: 101,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,769.78 : 214,156.38 = 67,897.16 : x
  2. Step 2: Convert to fraction form
    142,769.78/214,156.38 = 67,897.16/x
  3. Step 3: Cross multiply
    142,769.78x = 214,156.38 × 67,897.16
  4. Step 4: Simplify right side
    142,769.78x = 14,540,609,997.88
  5. Step 5: Solve for x
    x = 14,540,609,997.88/142,769.78
  6. Step 6: Final answer
    x = 101,846.55

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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.