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Finding the Fourth Proportional to 125,406.83, 173,066.42 and 68,820.23

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Solution

The fourth proportional to 125,406.83, 173,066.42 and 68,820.23 is: 94,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,406.83 : 173,066.42 = 68,820.23 : x
  2. Step 2: Convert to fraction form
    125,406.83/173,066.42 = 68,820.23/x
  3. Step 3: Cross multiply
    125,406.83x = 173,066.42 × 68,820.23
  4. Step 4: Simplify right side
    125,406.83x = 11,910,470,485.58
  5. Step 5: Solve for x
    x = 11,910,470,485.58/125,406.83
  6. Step 6: Final answer
    x = 94,974.66

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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.