Home / 101,175.12-139,621.87-55,853.16

Finding the Fourth Proportional to 101,175.12, 139,621.87 and 55,853.16

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Solution

The fourth proportional to 101,175.12, 139,621.87 and 55,853.16 is: 77,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,175.12 : 139,621.87 = 55,853.16 : x
  2. Step 2: Convert to fraction form
    101,175.12/139,621.87 = 55,853.16/x
  3. Step 3: Cross multiply
    101,175.12x = 139,621.87 × 55,853.16
  4. Step 4: Simplify right side
    101,175.12x = 7,798,321,667.23
  5. Step 5: Solve for x
    x = 7,798,321,667.23/101,175.12
  6. Step 6: Final answer
    x = 77,077.47

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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.