Home / 211,604.24-317,397.72-86,942

Finding the Fourth Proportional to 211,604.24, 317,397.72 and 86,942

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Solution

The fourth proportional to 211,604.24, 317,397.72 and 86,942 is: 130,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,604.24 : 317,397.72 = 86,942 : x
  2. Step 2: Convert to fraction form
    211,604.24/317,397.72 = 86,942/x
  3. Step 3: Cross multiply
    211,604.24x = 317,397.72 × 86,942
  4. Step 4: Simplify right side
    211,604.24x = 27,595,192,572.24
  5. Step 5: Solve for x
    x = 27,595,192,572.24/211,604.24
  6. Step 6: Final answer
    x = 130,409.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.