Home / 125,206.72-172,784.32-68,617.92

Finding the Fourth Proportional to 125,206.72, 172,784.32 and 68,617.92

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Solution

The fourth proportional to 125,206.72, 172,784.32 and 68,617.92 is: 94,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,206.72 : 172,784.32 = 68,617.92 : x
  2. Step 2: Convert to fraction form
    125,206.72/172,784.32 = 68,617.92/x
  3. Step 3: Cross multiply
    125,206.72x = 172,784.32 × 68,617.92
  4. Step 4: Simplify right side
    125,206.72x = 11,856,100,647.01
  5. Step 5: Solve for x
    x = 11,856,100,647.01/125,206.72
  6. Step 6: Final answer
    x = 94,692.21

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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.