Home / 212,215.88-318,324.17-70,069.07

Finding the Fourth Proportional to 212,215.88, 318,324.17 and 70,069.07

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Solution

The fourth proportional to 212,215.88, 318,324.17 and 70,069.07 is: 105,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,215.88 : 318,324.17 = 70,069.07 : x
  2. Step 2: Convert to fraction form
    212,215.88/318,324.17 = 70,069.07/x
  3. Step 3: Cross multiply
    212,215.88x = 318,324.17 × 70,069.07
  4. Step 4: Simplify right side
    212,215.88x = 22,304,679,521.41
  5. Step 5: Solve for x
    x = 22,304,679,521.41/212,215.88
  6. Step 6: Final answer
    x = 105,103.72

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1.5x scale

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.