Home / 120,408.48-166,190.40-70,136.64

Finding the Fourth Proportional to 120,408.48, 166,190.40 and 70,136.64

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Solution

The fourth proportional to 120,408.48, 166,190.40 and 70,136.64 is: 96,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,408.48 : 166,190.40 = 70,136.64 : x
  2. Step 2: Convert to fraction form
    120,408.48/166,190.40 = 70,136.64/x
  3. Step 3: Cross multiply
    120,408.48x = 166,190.40 × 70,136.64
  4. Step 4: Simplify right side
    120,408.48x = 11,656,036,256.26
  5. Step 5: Solve for x
    x = 11,656,036,256.26/120,408.48
  6. Step 6: Final answer
    x = 96,804.11

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1.5x scale

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.