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Finding the Fourth Proportional to 98,213.82, 147,394.10 and 66,548.80

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Solution

The fourth proportional to 98,213.82, 147,394.10 and 66,548.80 is: 99,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,213.82 : 147,394.10 = 66,548.80 : x
  2. Step 2: Convert to fraction form
    98,213.82/147,394.10 = 66,548.80/x
  3. Step 3: Cross multiply
    98,213.82x = 147,394.10 × 66,548.80
  4. Step 4: Simplify right side
    98,213.82x = 9,808,900,482.08
  5. Step 5: Solve for x
    x = 9,808,900,482.08/98,213.82
  6. Step 6: Final answer
    x = 99,872.91

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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.