Home / 100,544.22-138,816-62,344.35

Finding the Fourth Proportional to 100,544.22, 138,816 and 62,344.35

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Solution

The fourth proportional to 100,544.22, 138,816 and 62,344.35 is: 86,075.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,544.22 : 138,816 = 62,344.35 : x
  2. Step 2: Convert to fraction form
    100,544.22/138,816 = 62,344.35/x
  3. Step 3: Cross multiply
    100,544.22x = 138,816 × 62,344.35
  4. Step 4: Simplify right side
    100,544.22x = 8,654,393,289.60
  5. Step 5: Solve for x
    x = 8,654,393,289.60/100,544.22
  6. Step 6: Final answer
    x = 86,075.49

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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.