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Finding the Fourth Proportional to 125,014.53, 187,521.81 and 54,894.45

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Solution

The fourth proportional to 125,014.53, 187,521.81 and 54,894.45 is: 82,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,014.53 : 187,521.81 = 54,894.45 : x
  2. Step 2: Convert to fraction form
    125,014.53/187,521.81 = 54,894.45/x
  3. Step 3: Cross multiply
    125,014.53x = 187,521.81 × 54,894.45
  4. Step 4: Simplify right side
    125,014.53x = 10,293,906,622.95
  5. Step 5: Solve for x
    x = 10,293,906,622.95/125,014.53
  6. Step 6: Final answer
    x = 82,341.68

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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.