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Finding the Fourth Proportional to 98,766, 148,150.62 and 28,652.40

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Solution

The fourth proportional to 98,766, 148,150.62 and 28,652.40 is: 42,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,766 : 148,150.62 = 28,652.40 : x
  2. Step 2: Convert to fraction form
    98,766/148,150.62 = 28,652.40/x
  3. Step 3: Cross multiply
    98,766x = 148,150.62 × 28,652.40
  4. Step 4: Simplify right side
    98,766x = 4,244,870,824.49
  5. Step 5: Solve for x
    x = 4,244,870,824.49/98,766
  6. Step 6: Final answer
    x = 42,979.07

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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.