Home / 149,542.29-206,361.08-89,111.59

Finding the Fourth Proportional to 149,542.29, 206,361.08 and 89,111.59

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Solution

The fourth proportional to 149,542.29, 206,361.08 and 89,111.59 is: 122,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,542.29 : 206,361.08 = 89,111.59 : x
  2. Step 2: Convert to fraction form
    149,542.29/206,361.08 = 89,111.59/x
  3. Step 3: Cross multiply
    149,542.29x = 206,361.08 × 89,111.59
  4. Step 4: Simplify right side
    149,542.29x = 18,389,163,325.63
  5. Step 5: Solve for x
    x = 18,389,163,325.63/149,542.29
  6. Step 6: Final answer
    x = 122,969.65

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1.5x scale

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.