Home / 149,609.86-206,488.31-89,184.36

Finding the Fourth Proportional to 149,609.86, 206,488.31 and 89,184.36

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Solution

The fourth proportional to 149,609.86, 206,488.31 and 89,184.36 is: 123,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,609.86 : 206,488.31 = 89,184.36 : x
  2. Step 2: Convert to fraction form
    149,609.86/206,488.31 = 89,184.36/x
  3. Step 3: Cross multiply
    149,609.86x = 206,488.31 × 89,184.36
  4. Step 4: Simplify right side
    149,609.86x = 18,415,527,774.83
  5. Step 5: Solve for x
    x = 18,415,527,774.83/149,609.86
  6. Step 6: Final answer
    x = 123,090.33

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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.