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Finding the Fourth Proportional to 98,514.43, 147,770.06 and 66,845.72

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Solution

The fourth proportional to 98,514.43, 147,770.06 and 66,845.72 is: 100,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,514.43 : 147,770.06 = 66,845.72 : x
  2. Step 2: Convert to fraction form
    98,514.43/147,770.06 = 66,845.72/x
  3. Step 3: Cross multiply
    98,514.43x = 147,770.06 × 66,845.72
  4. Step 4: Simplify right side
    98,514.43x = 9,877,796,090.34
  5. Step 5: Solve for x
    x = 9,877,796,090.34/98,514.43
  6. Step 6: Final answer
    x = 100,267.51

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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.