Home / 98,644.64-148,144.20-90,732.80

Finding the Fourth Proportional to 98,644.64, 148,144.20 and 90,732.80

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Solution

The fourth proportional to 98,644.64, 148,144.20 and 90,732.80 is: 136,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,644.64 : 148,144.20 = 90,732.80 : x
  2. Step 2: Convert to fraction form
    98,644.64/148,144.20 = 90,732.80/x
  3. Step 3: Cross multiply
    98,644.64x = 148,144.20 × 90,732.80
  4. Step 4: Simplify right side
    98,644.64x = 13,441,538,069.76
  5. Step 5: Solve for x
    x = 13,441,538,069.76/98,644.64
  6. Step 6: Final answer
    x = 136,262.22

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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.