Home / 120,389.52-166,135.49-66,673.38

Finding the Fourth Proportional to 120,389.52, 166,135.49 and 66,673.38

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Solution

The fourth proportional to 120,389.52, 166,135.49 and 66,673.38 is: 92,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,389.52 : 166,135.49 = 66,673.38 : x
  2. Step 2: Convert to fraction form
    120,389.52/166,135.49 = 66,673.38/x
  3. Step 3: Cross multiply
    120,389.52x = 166,135.49 × 66,673.38
  4. Step 4: Simplify right side
    120,389.52x = 11,076,814,542.69
  5. Step 5: Solve for x
    x = 11,076,814,542.69/120,389.52
  6. Step 6: Final answer
    x = 92,008.13

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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.