Home / 120,614.08-166,467.36-66,916.39

Finding the Fourth Proportional to 120,614.08, 166,467.36 and 66,916.39

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Solution

The fourth proportional to 120,614.08, 166,467.36 and 66,916.39 is: 92,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,614.08 : 166,467.36 = 66,916.39 : x
  2. Step 2: Convert to fraction form
    120,614.08/166,467.36 = 66,916.39/x
  3. Step 3: Cross multiply
    120,614.08x = 166,467.36 × 66,916.39
  4. Step 4: Simplify right side
    120,614.08x = 11,139,394,449.45
  5. Step 5: Solve for x
    x = 11,139,394,449.45/120,614.08
  6. Step 6: Final answer
    x = 92,355.68

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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.