Home / 148,680.69-222,705.12-100,678.47

Finding the Fourth Proportional to 148,680.69, 222,705.12 and 100,678.47

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Solution

The fourth proportional to 148,680.69, 222,705.12 and 100,678.47 is: 150,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,680.69 : 222,705.12 = 100,678.47 : x
  2. Step 2: Convert to fraction form
    148,680.69/222,705.12 = 100,678.47/x
  3. Step 3: Cross multiply
    148,680.69x = 222,705.12 × 100,678.47
  4. Step 4: Simplify right side
    148,680.69x = 22,421,610,742.77
  5. Step 5: Solve for x
    x = 22,421,610,742.77/148,680.69
  6. Step 6: Final answer
    x = 150,803.78

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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.