Home / 149,542.48-206,367.75-81,558.16

Finding the Fourth Proportional to 149,542.48, 206,367.75 and 81,558.16

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Solution

The fourth proportional to 149,542.48, 206,367.75 and 81,558.16 is: 112,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,542.48 : 206,367.75 = 81,558.16 : x
  2. Step 2: Convert to fraction form
    149,542.48/206,367.75 = 81,558.16/x
  3. Step 3: Cross multiply
    149,542.48x = 206,367.75 × 81,558.16
  4. Step 4: Simplify right side
    149,542.48x = 16,830,973,973.34
  5. Step 5: Solve for x
    x = 16,830,973,973.34/149,542.48
  6. Step 6: Final answer
    x = 112,549.79

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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.