Home / 148,929.19-205,522.28-81,861.19

Finding the Fourth Proportional to 148,929.19, 205,522.28 and 81,861.19

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Solution

The fourth proportional to 148,929.19, 205,522.28 and 81,861.19 is: 112,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,929.19 : 205,522.28 = 81,861.19 : x
  2. Step 2: Convert to fraction form
    148,929.19/205,522.28 = 81,861.19/x
  3. Step 3: Cross multiply
    148,929.19x = 205,522.28 × 81,861.19
  4. Step 4: Simplify right side
    148,929.19x = 16,824,297,796.18
  5. Step 5: Solve for x
    x = 16,824,297,796.18/148,929.19
  6. Step 6: Final answer
    x = 112,968.44

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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.