Home / 149,790.88-206,359.80-104,386.32

Finding the Fourth Proportional to 149,790.88, 206,359.80 and 104,386.32

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Solution

The fourth proportional to 149,790.88, 206,359.80 and 104,386.32 is: 143,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,790.88 : 206,359.80 = 104,386.32 : x
  2. Step 2: Convert to fraction form
    149,790.88/206,359.80 = 104,386.32/x
  3. Step 3: Cross multiply
    149,790.88x = 206,359.80 × 104,386.32
  4. Step 4: Simplify right side
    149,790.88x = 21,541,140,117.94
  5. Step 5: Solve for x
    x = 21,541,140,117.94/149,790.88
  6. Step 6: Final answer
    x = 143,808.09

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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.