Home / 100,949.62-139,315.17-58,521.46

Finding the Fourth Proportional to 100,949.62, 139,315.17 and 58,521.46

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Solution

The fourth proportional to 100,949.62, 139,315.17 and 58,521.46 is: 80,762.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,949.62 : 139,315.17 = 58,521.46 : x
  2. Step 2: Convert to fraction form
    100,949.62/139,315.17 = 58,521.46/x
  3. Step 3: Cross multiply
    100,949.62x = 139,315.17 × 58,521.46
  4. Step 4: Simplify right side
    100,949.62x = 8,152,927,148.55
  5. Step 5: Solve for x
    x = 8,152,927,148.55/100,949.62
  6. Step 6: Final answer
    x = 80,762.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.