Home / 170,723.89-235,627.73-99,163.81

Finding the Fourth Proportional to 170,723.89, 235,627.73 and 99,163.81

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Solution

The fourth proportional to 170,723.89, 235,627.73 and 99,163.81 is: 136,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,723.89 : 235,627.73 = 99,163.81 : x
  2. Step 2: Convert to fraction form
    170,723.89/235,627.73 = 99,163.81/x
  3. Step 3: Cross multiply
    170,723.89x = 235,627.73 × 99,163.81
  4. Step 4: Simplify right side
    170,723.89x = 23,365,743,448.45
  5. Step 5: Solve for x
    x = 23,365,743,448.45/170,723.89
  6. Step 6: Final answer
    x = 136,862.76

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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.