Home / 101,121.35-139,555.98-58,677.14

Finding the Fourth Proportional to 101,121.35, 139,555.98 and 58,677.14

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Solution

The fourth proportional to 101,121.35, 139,555.98 and 58,677.14 is: 80,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,121.35 : 139,555.98 = 58,677.14 : x
  2. Step 2: Convert to fraction form
    101,121.35/139,555.98 = 58,677.14/x
  3. Step 3: Cross multiply
    101,121.35x = 139,555.98 × 58,677.14
  4. Step 4: Simplify right side
    101,121.35x = 8,188,746,125.19
  5. Step 5: Solve for x
    x = 8,188,746,125.19/101,121.35
  6. Step 6: Final answer
    x = 80,979.40

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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.