Home / 83,467.54-124,981.92-70,107.70

Finding the Fourth Proportional to 83,467.54, 124,981.92 and 70,107.70

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Solution

The fourth proportional to 83,467.54, 124,981.92 and 70,107.70 is: 104,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,467.54 : 124,981.92 = 70,107.70 : x
  2. Step 2: Convert to fraction form
    83,467.54/124,981.92 = 70,107.70/x
  3. Step 3: Cross multiply
    83,467.54x = 124,981.92 × 70,107.70
  4. Step 4: Simplify right side
    83,467.54x = 8,762,195,521.95
  5. Step 5: Solve for x
    x = 8,762,195,521.95/83,467.54
  6. Step 6: Final answer
    x = 104,977.28

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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.