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Finding the Fourth Proportional to 98,500.77, 147,763.92 and 45,179.88

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Solution

The fourth proportional to 98,500.77, 147,763.92 and 45,179.88 is: 67,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,500.77 : 147,763.92 = 45,179.88 : x
  2. Step 2: Convert to fraction form
    98,500.77/147,763.92 = 45,179.88/x
  3. Step 3: Cross multiply
    98,500.77x = 147,763.92 × 45,179.88
  4. Step 4: Simplify right side
    98,500.77x = 6,675,956,173.93
  5. Step 5: Solve for x
    x = 6,675,956,173.93/98,500.77
  6. Step 6: Final answer
    x = 67,775.67

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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.