Home / 107,988.12-149,040.02-65,538.44

Finding the Fourth Proportional to 107,988.12, 149,040.02 and 65,538.44

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Solution

The fourth proportional to 107,988.12, 149,040.02 and 65,538.44 is: 90,453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,988.12 : 149,040.02 = 65,538.44 : x
  2. Step 2: Convert to fraction form
    107,988.12/149,040.02 = 65,538.44/x
  3. Step 3: Cross multiply
    107,988.12x = 149,040.02 × 65,538.44
  4. Step 4: Simplify right side
    107,988.12x = 9,767,850,408.37
  5. Step 5: Solve for x
    x = 9,767,850,408.37/107,988.12
  6. Step 6: Final answer
    x = 90,453.01

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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.