Home / 212,043.24-317,648.70-123,110.28

Finding the Fourth Proportional to 212,043.24, 317,648.70 and 123,110.28

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Solution

The fourth proportional to 212,043.24, 317,648.70 and 123,110.28 is: 184,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,043.24 : 317,648.70 = 123,110.28 : x
  2. Step 2: Convert to fraction form
    212,043.24/317,648.70 = 123,110.28/x
  3. Step 3: Cross multiply
    212,043.24x = 317,648.70 × 123,110.28
  4. Step 4: Simplify right side
    212,043.24x = 39,105,820,398.64
  5. Step 5: Solve for x
    x = 39,105,820,398.64/212,043.24
  6. Step 6: Final answer
    x = 184,423.80

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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.