Home / 149,611.68-206,435.93-89,187.94

Finding the Fourth Proportional to 149,611.68, 206,435.93 and 89,187.94

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Solution

The fourth proportional to 149,611.68, 206,435.93 and 89,187.94 is: 123,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,611.68 : 206,435.93 = 89,187.94 : x
  2. Step 2: Convert to fraction form
    149,611.68/206,435.93 = 89,187.94/x
  3. Step 3: Cross multiply
    149,611.68x = 206,435.93 × 89,187.94
  4. Step 4: Simplify right side
    149,611.68x = 18,411,595,150.79
  5. Step 5: Solve for x
    x = 18,411,595,150.79/149,611.68
  6. Step 6: Final answer
    x = 123,062.55

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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.