Home / 120,661.90-166,537.65-69,682.93

Finding the Fourth Proportional to 120,661.90, 166,537.65 and 69,682.93

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Solution

The fourth proportional to 120,661.90, 166,537.65 and 69,682.93 is: 96,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,661.90 : 166,537.65 = 69,682.93 : x
  2. Step 2: Convert to fraction form
    120,661.90/166,537.65 = 69,682.93/x
  3. Step 3: Cross multiply
    120,661.90x = 166,537.65 × 69,682.93
  4. Step 4: Simplify right side
    120,661.90x = 11,604,831,407.31
  5. Step 5: Solve for x
    x = 11,604,831,407.31/120,661.90
  6. Step 6: Final answer
    x = 96,176.44

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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.