Home / 101,171.36-139,624.20-55,858.06

Finding the Fourth Proportional to 101,171.36, 139,624.20 and 55,858.06

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Solution

The fourth proportional to 101,171.36, 139,624.20 and 55,858.06 is: 77,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,171.36 : 139,624.20 = 55,858.06 : x
  2. Step 2: Convert to fraction form
    101,171.36/139,624.20 = 55,858.06/x
  3. Step 3: Cross multiply
    101,171.36x = 139,624.20 × 55,858.06
  4. Step 4: Simplify right side
    101,171.36x = 7,799,136,941.05
  5. Step 5: Solve for x
    x = 7,799,136,941.05/101,171.36
  6. Step 6: Final answer
    x = 77,088.39

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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.