Home / 146,390.16-219,415.78-67,338.48

Finding the Fourth Proportional to 146,390.16, 219,415.78 and 67,338.48

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Solution

The fourth proportional to 146,390.16, 219,415.78 and 67,338.48 is: 100,929.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,390.16 : 219,415.78 = 67,338.48 : x
  2. Step 2: Convert to fraction form
    146,390.16/219,415.78 = 67,338.48/x
  3. Step 3: Cross multiply
    146,390.16x = 219,415.78 × 67,338.48
  4. Step 4: Simplify right side
    146,390.16x = 14,775,125,113.21
  5. Step 5: Solve for x
    x = 14,775,125,113.21/146,390.16
  6. Step 6: Final answer
    x = 100,929.77

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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.