Home / 149,548.80-206,379.84-81,566.16

Finding the Fourth Proportional to 149,548.80, 206,379.84 and 81,566.16

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Solution

The fourth proportional to 149,548.80, 206,379.84 and 81,566.16 is: 112,562.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,548.80 : 206,379.84 = 81,566.16 : x
  2. Step 2: Convert to fraction form
    149,548.80/206,379.84 = 81,566.16/x
  3. Step 3: Cross multiply
    149,548.80x = 206,379.84 × 81,566.16
  4. Step 4: Simplify right side
    149,548.80x = 16,833,611,050.21
  5. Step 5: Solve for x
    x = 16,833,611,050.21/149,548.80
  6. Step 6: Final answer
    x = 112,562.66

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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.