Home / 120,662.90-166,539.03-69,683.93

Finding the Fourth Proportional to 120,662.90, 166,539.03 and 69,683.93

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Solution

The fourth proportional to 120,662.90, 166,539.03 and 69,683.93 is: 96,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,662.90 : 166,539.03 = 69,683.93 : x
  2. Step 2: Convert to fraction form
    120,662.90/166,539.03 = 69,683.93/x
  3. Step 3: Cross multiply
    120,662.90x = 166,539.03 × 69,683.93
  4. Step 4: Simplify right side
    120,662.90x = 11,605,094,108.79
  5. Step 5: Solve for x
    x = 11,605,094,108.79/120,662.90
  6. Step 6: Final answer
    x = 96,177.82

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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.