Home / 212,039.06-318,070.49-67,957.40

Finding the Fourth Proportional to 212,039.06, 318,070.49 and 67,957.40

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Solution

The fourth proportional to 212,039.06, 318,070.49 and 67,957.40 is: 101,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,039.06 : 318,070.49 = 67,957.40 : x
  2. Step 2: Convert to fraction form
    212,039.06/318,070.49 = 67,957.40/x
  3. Step 3: Cross multiply
    212,039.06x = 318,070.49 × 67,957.40
  4. Step 4: Simplify right side
    212,039.06x = 21,615,241,586.99
  5. Step 5: Solve for x
    x = 21,615,241,586.99/212,039.06
  6. Step 6: Final answer
    x = 101,939.91

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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.