Home / 101,177.16-139,624.69-55,855.21

Finding the Fourth Proportional to 101,177.16, 139,624.69 and 55,855.21

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Solution

The fourth proportional to 101,177.16, 139,624.69 and 55,855.21 is: 77,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,177.16 : 139,624.69 = 55,855.21 : x
  2. Step 2: Convert to fraction form
    101,177.16/139,624.69 = 55,855.21/x
  3. Step 3: Cross multiply
    101,177.16x = 139,624.69 × 55,855.21
  4. Step 4: Simplify right side
    101,177.16x = 7,798,765,892.44
  5. Step 5: Solve for x
    x = 7,798,765,892.44/101,177.16
  6. Step 6: Final answer
    x = 77,080.30

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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.