Home / 231,222.16-346,861.02-81,431.50

Finding the Fourth Proportional to 231,222.16, 346,861.02 and 81,431.50

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Solution

The fourth proportional to 231,222.16, 346,861.02 and 81,431.50 is: 122,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,222.16 : 346,861.02 = 81,431.50 : x
  2. Step 2: Convert to fraction form
    231,222.16/346,861.02 = 81,431.50/x
  3. Step 3: Cross multiply
    231,222.16x = 346,861.02 × 81,431.50
  4. Step 4: Simplify right side
    231,222.16x = 28,245,413,150.13
  5. Step 5: Solve for x
    x = 28,245,413,150.13/231,222.16
  6. Step 6: Final answer
    x = 122,157.03

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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.