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Finding the Fourth Proportional to 100,045.80, 150,013.28 and 40,922.98

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Solution

The fourth proportional to 100,045.80, 150,013.28 and 40,922.98 is: 61,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,045.80 : 150,013.28 = 40,922.98 : x
  2. Step 2: Convert to fraction form
    100,045.80/150,013.28 = 40,922.98/x
  3. Step 3: Cross multiply
    100,045.80x = 150,013.28 × 40,922.98
  4. Step 4: Simplify right side
    100,045.80x = 6,138,990,457.17
  5. Step 5: Solve for x
    x = 6,138,990,457.17/100,045.80
  6. Step 6: Final answer
    x = 61,361.80

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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.