Home / 148,041.27-221,981.94-76,787.27

Finding the Fourth Proportional to 148,041.27, 221,981.94 and 76,787.27

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Solution

The fourth proportional to 148,041.27, 221,981.94 and 76,787.27 is: 115,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,041.27 : 221,981.94 = 76,787.27 : x
  2. Step 2: Convert to fraction form
    148,041.27/221,981.94 = 76,787.27/x
  3. Step 3: Cross multiply
    148,041.27x = 221,981.94 × 76,787.27
  4. Step 4: Simplify right side
    148,041.27x = 17,045,385,668.06
  5. Step 5: Solve for x
    x = 17,045,385,668.06/148,041.27
  6. Step 6: Final answer
    x = 115,139.42

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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.