Home / 149,396.01-206,166.50-81,412.96

Finding the Fourth Proportional to 149,396.01, 206,166.50 and 81,412.96

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Solution

The fourth proportional to 149,396.01, 206,166.50 and 81,412.96 is: 112,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,396.01 : 206,166.50 = 81,412.96 : x
  2. Step 2: Convert to fraction form
    149,396.01/206,166.50 = 81,412.96/x
  3. Step 3: Cross multiply
    149,396.01x = 206,166.50 × 81,412.96
  4. Step 4: Simplify right side
    149,396.01x = 16,784,625,017.84
  5. Step 5: Solve for x
    x = 16,784,625,017.84/149,396.01
  6. Step 6: Final answer
    x = 112,349.89

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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.