Home / 231,623.40-347,550.30-91,386.60

Finding the Fourth Proportional to 231,623.40, 347,550.30 and 91,386.60

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Solution

The fourth proportional to 231,623.40, 347,550.30 and 91,386.60 is: 137,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,623.40 : 347,550.30 = 91,386.60 : x
  2. Step 2: Convert to fraction form
    231,623.40/347,550.30 = 91,386.60/x
  3. Step 3: Cross multiply
    231,623.40x = 347,550.30 × 91,386.60
  4. Step 4: Simplify right side
    231,623.40x = 31,761,440,245.98
  5. Step 5: Solve for x
    x = 31,761,440,245.98/231,623.40
  6. Step 6: Final answer
    x = 137,125.35

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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.