Home / 101,177.05-139,625.47-55,855.06

Finding the Fourth Proportional to 101,177.05, 139,625.47 and 55,855.06

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Solution

The fourth proportional to 101,177.05, 139,625.47 and 55,855.06 is: 77,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,177.05 : 139,625.47 = 55,855.06 : x
  2. Step 2: Convert to fraction form
    101,177.05/139,625.47 = 55,855.06/x
  3. Step 3: Cross multiply
    101,177.05x = 139,625.47 × 55,855.06
  4. Step 4: Simplify right side
    101,177.05x = 7,798,789,004.38
  5. Step 5: Solve for x
    x = 7,798,789,004.38/101,177.05
  6. Step 6: Final answer
    x = 77,080.61

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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.