Home / 149,493.12-206,305.44-89,055.50

Finding the Fourth Proportional to 149,493.12, 206,305.44 and 89,055.50

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Solution

The fourth proportional to 149,493.12, 206,305.44 and 89,055.50 is: 122,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,493.12 : 206,305.44 = 89,055.50 : x
  2. Step 2: Convert to fraction form
    149,493.12/206,305.44 = 89,055.50/x
  3. Step 3: Cross multiply
    149,493.12x = 206,305.44 × 89,055.50
  4. Step 4: Simplify right side
    149,493.12x = 18,372,634,111.92
  5. Step 5: Solve for x
    x = 18,372,634,111.92/149,493.12
  6. Step 6: Final answer
    x = 122,899.53

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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.