Home / 212,106.69-317,980.63-92,073.43

Finding the Fourth Proportional to 212,106.69, 317,980.63 and 92,073.43

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Solution

The fourth proportional to 212,106.69, 317,980.63 and 92,073.43 is: 138,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,106.69 : 317,980.63 = 92,073.43 : x
  2. Step 2: Convert to fraction form
    212,106.69/317,980.63 = 92,073.43/x
  3. Step 3: Cross multiply
    212,106.69x = 317,980.63 × 92,073.43
  4. Step 4: Simplify right side
    212,106.69x = 29,277,567,277.66
  5. Step 5: Solve for x
    x = 29,277,567,277.66/212,106.69
  6. Step 6: Final answer
    x = 138,032.27

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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.