Home / 212,379.53-318,421.67-93,986.29

Finding the Fourth Proportional to 212,379.53, 318,421.67 and 93,986.29

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Solution

The fourth proportional to 212,379.53, 318,421.67 and 93,986.29 is: 140,914.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,379.53 : 318,421.67 = 93,986.29 : x
  2. Step 2: Convert to fraction form
    212,379.53/318,421.67 = 93,986.29/x
  3. Step 3: Cross multiply
    212,379.53x = 318,421.67 × 93,986.29
  4. Step 4: Simplify right side
    212,379.53x = 29,927,271,418.90
  5. Step 5: Solve for x
    x = 29,927,271,418.90/212,379.53
  6. Step 6: Final answer
    x = 140,914.11

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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.