Home / 125,212.32-172,791.36-68,623.20

Finding the Fourth Proportional to 125,212.32, 172,791.36 and 68,623.20

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Solution

The fourth proportional to 125,212.32, 172,791.36 and 68,623.20 is: 94,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,212.32 : 172,791.36 = 68,623.20 : x
  2. Step 2: Convert to fraction form
    125,212.32/172,791.36 = 68,623.20/x
  3. Step 3: Cross multiply
    125,212.32x = 172,791.36 × 68,623.20
  4. Step 4: Simplify right side
    125,212.32x = 11,857,496,055.55
  5. Step 5: Solve for x
    x = 11,857,496,055.55/125,212.32
  6. Step 6: Final answer
    x = 94,699.12

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1.5x scale

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.