Home / 141,330.70-212,027.22-78,242.80

Finding the Fourth Proportional to 141,330.70, 212,027.22 and 78,242.80

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Solution

The fourth proportional to 141,330.70, 212,027.22 and 78,242.80 is: 117,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,330.70 : 212,027.22 = 78,242.80 : x
  2. Step 2: Convert to fraction form
    141,330.70/212,027.22 = 78,242.80/x
  3. Step 3: Cross multiply
    141,330.70x = 212,027.22 × 78,242.80
  4. Step 4: Simplify right side
    141,330.70x = 16,589,603,369.02
  5. Step 5: Solve for x
    x = 16,589,603,369.02/141,330.70
  6. Step 6: Final answer
    x = 117,381.46

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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.