Home / 98,984.20-148,476.30-28,870.60

Finding the Fourth Proportional to 98,984.20, 148,476.30 and 28,870.60

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Solution

The fourth proportional to 98,984.20, 148,476.30 and 28,870.60 is: 43,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,984.20 : 148,476.30 = 28,870.60 : x
  2. Step 2: Convert to fraction form
    98,984.20/148,476.30 = 28,870.60/x
  3. Step 3: Cross multiply
    98,984.20x = 148,476.30 × 28,870.60
  4. Step 4: Simplify right side
    98,984.20x = 4,286,599,866.78
  5. Step 5: Solve for x
    x = 4,286,599,866.78/98,984.20
  6. Step 6: Final answer
    x = 43,305.90

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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.