Home / 202,210.21-279,049.29-111,571.81

Finding the Fourth Proportional to 202,210.21, 279,049.29 and 111,571.81

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Solution

The fourth proportional to 202,210.21, 279,049.29 and 111,571.81 is: 153,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,210.21 : 279,049.29 = 111,571.81 : x
  2. Step 2: Convert to fraction form
    202,210.21/279,049.29 = 111,571.81/x
  3. Step 3: Cross multiply
    202,210.21x = 279,049.29 × 111,571.81
  4. Step 4: Simplify right side
    202,210.21x = 31,134,034,364.51
  5. Step 5: Solve for x
    x = 31,134,034,364.51/202,210.21
  6. Step 6: Final answer
    x = 153,968.66

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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.