Home / 202,331.16-279,217.06-111,687.20

Finding the Fourth Proportional to 202,331.16, 279,217.06 and 111,687.20

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Solution

The fourth proportional to 202,331.16, 279,217.06 and 111,687.20 is: 154,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,331.16 : 279,217.06 = 111,687.20 : x
  2. Step 2: Convert to fraction form
    202,331.16/279,217.06 = 111,687.20/x
  3. Step 3: Cross multiply
    202,331.16x = 279,217.06 × 111,687.20
  4. Step 4: Simplify right side
    202,331.16x = 31,184,971,623.63
  5. Step 5: Solve for x
    x = 31,184,971,623.63/202,331.16
  6. Step 6: Final answer
    x = 154,128.37

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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.