Home / 107,975.20-161,962.80-101,408.80

Finding the Fourth Proportional to 107,975.20, 161,962.80 and 101,408.80

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Solution

The fourth proportional to 107,975.20, 161,962.80 and 101,408.80 is: 152,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,975.20 : 161,962.80 = 101,408.80 : x
  2. Step 2: Convert to fraction form
    107,975.20/161,962.80 = 101,408.80/x
  3. Step 3: Cross multiply
    107,975.20x = 161,962.80 × 101,408.80
  4. Step 4: Simplify right side
    107,975.20x = 16,424,453,192.64
  5. Step 5: Solve for x
    x = 16,424,453,192.64/107,975.20
  6. Step 6: Final answer
    x = 152,113.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.