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Finding the Fourth Proportional to 98,854.78, 148,304.04 and 28,728.22

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Solution

The fourth proportional to 98,854.78, 148,304.04 and 28,728.22 is: 43,098.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,854.78 : 148,304.04 = 28,728.22 : x
  2. Step 2: Convert to fraction form
    98,854.78/148,304.04 = 28,728.22/x
  3. Step 3: Cross multiply
    98,854.78x = 148,304.04 × 28,728.22
  4. Step 4: Simplify right side
    98,854.78x = 4,260,511,088.01
  5. Step 5: Solve for x
    x = 4,260,511,088.01/98,854.78
  6. Step 6: Final answer
    x = 43,098.69

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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.