Home / 107,408.40-161,112.60-48,272.40

Finding the Fourth Proportional to 107,408.40, 161,112.60 and 48,272.40

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Solution

The fourth proportional to 107,408.40, 161,112.60 and 48,272.40 is: 72,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,408.40 : 161,112.60 = 48,272.40 : x
  2. Step 2: Convert to fraction form
    107,408.40/161,112.60 = 48,272.40/x
  3. Step 3: Cross multiply
    107,408.40x = 161,112.60 × 48,272.40
  4. Step 4: Simplify right side
    107,408.40x = 7,777,291,872.24
  5. Step 5: Solve for x
    x = 7,777,291,872.24/107,408.40
  6. Step 6: Final answer
    x = 72,408.60

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1.5x scale

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.