Home / 148,389.81-222,646.41-81,824.55

Finding the Fourth Proportional to 148,389.81, 222,646.41 and 81,824.55

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Solution

The fourth proportional to 148,389.81, 222,646.41 and 81,824.55 is: 122,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,389.81 : 222,646.41 = 81,824.55 : x
  2. Step 2: Convert to fraction form
    148,389.81/222,646.41 = 81,824.55/x
  3. Step 3: Cross multiply
    148,389.81x = 222,646.41 × 81,824.55
  4. Step 4: Simplify right side
    148,389.81x = 18,217,942,307.37
  5. Step 5: Solve for x
    x = 18,217,942,307.37/148,389.81
  6. Step 6: Final answer
    x = 122,770.84

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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.