Home / 101,190.14-139,631.79-58,740.38

Finding the Fourth Proportional to 101,190.14, 139,631.79 and 58,740.38

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Solution

The fourth proportional to 101,190.14, 139,631.79 and 58,740.38 is: 81,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,190.14 : 139,631.79 = 58,740.38 : x
  2. Step 2: Convert to fraction form
    101,190.14/139,631.79 = 58,740.38/x
  3. Step 3: Cross multiply
    101,190.14x = 139,631.79 × 58,740.38
  4. Step 4: Simplify right side
    101,190.14x = 8,202,024,404.68
  5. Step 5: Solve for x
    x = 8,202,024,404.68/101,190.14
  6. Step 6: Final answer
    x = 81,055.57

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1.5x scale

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.