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Finding the Fourth Proportional to 125,388, 173,035.44 and 68,803.02

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Solution

The fourth proportional to 125,388, 173,035.44 and 68,803.02 is: 94,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388 : 173,035.44 = 68,803.02 : x
  2. Step 2: Convert to fraction form
    125,388/173,035.44 = 68,803.02/x
  3. Step 3: Cross multiply
    125,388x = 173,035.44 × 68,803.02
  4. Step 4: Simplify right side
    125,388x = 11,905,360,839.03
  5. Step 5: Solve for x
    x = 11,905,360,839.03/125,388
  6. Step 6: Final answer
    x = 94,948.17

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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.