Home / 123,977.98-171,089.85-67,389.22

Finding the Fourth Proportional to 123,977.98, 171,089.85 and 67,389.22

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Solution

The fourth proportional to 123,977.98, 171,089.85 and 67,389.22 is: 92,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,977.98 : 171,089.85 = 67,389.22 : x
  2. Step 2: Convert to fraction form
    123,977.98/171,089.85 = 67,389.22/x
  3. Step 3: Cross multiply
    123,977.98x = 171,089.85 × 67,389.22
  4. Step 4: Simplify right side
    123,977.98x = 11,529,611,541.42
  5. Step 5: Solve for x
    x = 11,529,611,541.42/123,977.98
  6. Step 6: Final answer
    x = 92,997.25

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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.