Home / 101,180.13-139,621.41-55,850.84

Finding the Fourth Proportional to 101,180.13, 139,621.41 and 55,850.84

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Solution

The fourth proportional to 101,180.13, 139,621.41 and 55,850.84 is: 77,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,180.13 : 139,621.41 = 55,850.84 : x
  2. Step 2: Convert to fraction form
    101,180.13/139,621.41 = 55,850.84/x
  3. Step 3: Cross multiply
    101,180.13x = 139,621.41 × 55,850.84
  4. Step 4: Simplify right side
    101,180.13x = 7,797,972,332.38
  5. Step 5: Solve for x
    x = 7,797,972,332.38/101,180.13
  6. Step 6: Final answer
    x = 77,070.19

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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.