Home / 120,790.41-166,715.22-69,805.28

Finding the Fourth Proportional to 120,790.41, 166,715.22 and 69,805.28

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Solution

The fourth proportional to 120,790.41, 166,715.22 and 69,805.28 is: 96,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,790.41 : 166,715.22 = 69,805.28 : x
  2. Step 2: Convert to fraction form
    120,790.41/166,715.22 = 69,805.28/x
  3. Step 3: Cross multiply
    120,790.41x = 166,715.22 × 69,805.28
  4. Step 4: Simplify right side
    120,790.41x = 11,637,601,778.79
  5. Step 5: Solve for x
    x = 11,637,601,778.79/120,790.41
  6. Step 6: Final answer
    x = 96,345.41

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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.