Home / 99,611.10-149,456.70-40,451.40

Finding the Fourth Proportional to 99,611.10, 149,456.70 and 40,451.40

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Solution

The fourth proportional to 99,611.10, 149,456.70 and 40,451.40 is: 60,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,611.10 : 149,456.70 = 40,451.40 : x
  2. Step 2: Convert to fraction form
    99,611.10/149,456.70 = 40,451.40/x
  3. Step 3: Cross multiply
    99,611.10x = 149,456.70 × 40,451.40
  4. Step 4: Simplify right side
    99,611.10x = 6,045,732,754.38
  5. Step 5: Solve for x
    x = 6,045,732,754.38/99,611.10
  6. Step 6: Final answer
    x = 60,693.36

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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.