Home / 202,731.68-279,758.40-112,082.36

Finding the Fourth Proportional to 202,731.68, 279,758.40 and 112,082.36

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Solution

The fourth proportional to 202,731.68, 279,758.40 and 112,082.36 is: 154,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,731.68 : 279,758.40 = 112,082.36 : x
  2. Step 2: Convert to fraction form
    202,731.68/279,758.40 = 112,082.36/x
  3. Step 3: Cross multiply
    202,731.68x = 279,758.40 × 112,082.36
  4. Step 4: Simplify right side
    202,731.68x = 31,355,980,303.03
  5. Step 5: Solve for x
    x = 31,355,980,303.03/202,731.68
  6. Step 6: Final answer
    x = 154,667.40

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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.