Home / 98,636.84-147,956.32-28,516.76

Finding the Fourth Proportional to 98,636.84, 147,956.32 and 28,516.76

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Solution

The fourth proportional to 98,636.84, 147,956.32 and 28,516.76 is: 42,775.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,636.84 : 147,956.32 = 28,516.76 : x
  2. Step 2: Convert to fraction form
    98,636.84/147,956.32 = 28,516.76/x
  3. Step 3: Cross multiply
    98,636.84x = 147,956.32 × 28,516.76
  4. Step 4: Simplify right side
    98,636.84x = 4,219,234,867.92
  5. Step 5: Solve for x
    x = 4,219,234,867.92/98,636.84
  6. Step 6: Final answer
    x = 42,775.45

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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.