Home / 96,999.40-145,608.45-74,910.70

Finding the Fourth Proportional to 96,999.40, 145,608.45 and 74,910.70

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Solution

The fourth proportional to 96,999.40, 145,608.45 and 74,910.70 is: 112,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,999.40 : 145,608.45 = 74,910.70 : x
  2. Step 2: Convert to fraction form
    96,999.40/145,608.45 = 74,910.70/x
  3. Step 3: Cross multiply
    96,999.40x = 145,608.45 × 74,910.70
  4. Step 4: Simplify right side
    96,999.40x = 10,907,630,915.42
  5. Step 5: Solve for x
    x = 10,907,630,915.42/96,999.40
  6. Step 6: Final answer
    x = 112,450.50

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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.