Home / 149,630.37-206,494.89-81,651.07

Finding the Fourth Proportional to 149,630.37, 206,494.89 and 81,651.07

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Solution

The fourth proportional to 149,630.37, 206,494.89 and 81,651.07 is: 112,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,630.37 : 206,494.89 = 81,651.07 : x
  2. Step 2: Convert to fraction form
    149,630.37/206,494.89 = 81,651.07/x
  3. Step 3: Cross multiply
    149,630.37x = 206,494.89 × 81,651.07
  4. Step 4: Simplify right side
    149,630.37x = 16,860,528,669.96
  5. Step 5: Solve for x
    x = 16,860,528,669.96/149,630.37
  6. Step 6: Final answer
    x = 112,681.19

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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.