Home / 101,172.87-139,590.63-58,150.14

Finding the Fourth Proportional to 101,172.87, 139,590.63 and 58,150.14

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Solution

The fourth proportional to 101,172.87, 139,590.63 and 58,150.14 is: 80,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,172.87 : 139,590.63 = 58,150.14 : x
  2. Step 2: Convert to fraction form
    101,172.87/139,590.63 = 58,150.14/x
  3. Step 3: Cross multiply
    101,172.87x = 139,590.63 × 58,150.14
  4. Step 4: Simplify right side
    101,172.87x = 8,117,214,677.19
  5. Step 5: Solve for x
    x = 8,117,214,677.19/101,172.87
  6. Step 6: Final answer
    x = 80,231.14

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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.