Home / 202,209.21-279,047.92-111,570.81

Finding the Fourth Proportional to 202,209.21, 279,047.92 and 111,570.81

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Solution

The fourth proportional to 202,209.21, 279,047.92 and 111,570.81 is: 153,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,209.21 : 279,047.92 = 111,570.81 : x
  2. Step 2: Convert to fraction form
    202,209.21/279,047.92 = 111,570.81/x
  3. Step 3: Cross multiply
    202,209.21x = 279,047.92 × 111,570.81
  4. Step 4: Simplify right side
    202,209.21x = 31,133,601,905.36
  5. Step 5: Solve for x
    x = 31,133,601,905.36/202,209.21
  6. Step 6: Final answer
    x = 153,967.28

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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.