Home / 231,779.20-347,668.80-91,465.60

Finding the Fourth Proportional to 231,779.20, 347,668.80 and 91,465.60

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Solution

The fourth proportional to 231,779.20, 347,668.80 and 91,465.60 is: 137,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,779.20 : 347,668.80 = 91,465.60 : x
  2. Step 2: Convert to fraction form
    231,779.20/347,668.80 = 91,465.60/x
  3. Step 3: Cross multiply
    231,779.20x = 347,668.80 × 91,465.60
  4. Step 4: Simplify right side
    231,779.20x = 31,799,735,393.28
  5. Step 5: Solve for x
    x = 31,799,735,393.28/231,779.20
  6. Step 6: Final answer
    x = 137,198.40

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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.