Home / 141,683.20-212,524.80-79,345.60

Finding the Fourth Proportional to 141,683.20, 212,524.80 and 79,345.60

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Solution

The fourth proportional to 141,683.20, 212,524.80 and 79,345.60 is: 119,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,683.20 : 212,524.80 = 79,345.60 : x
  2. Step 2: Convert to fraction form
    141,683.20/212,524.80 = 79,345.60/x
  3. Step 3: Cross multiply
    141,683.20x = 212,524.80 × 79,345.60
  4. Step 4: Simplify right side
    141,683.20x = 16,862,907,770.88
  5. Step 5: Solve for x
    x = 16,862,907,770.88/141,683.20
  6. Step 6: Final answer
    x = 119,018.40

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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.