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Finding the Fourth Proportional to 100,064.64, 150,097.21 and 40,900.30

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Solution

The fourth proportional to 100,064.64, 150,097.21 and 40,900.30 is: 61,350.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,064.64 : 150,097.21 = 40,900.30 : x
  2. Step 2: Convert to fraction form
    100,064.64/150,097.21 = 40,900.30/x
  3. Step 3: Cross multiply
    100,064.64x = 150,097.21 × 40,900.30
  4. Step 4: Simplify right side
    100,064.64x = 6,139,020,918.16
  5. Step 5: Solve for x
    x = 6,139,020,918.16/100,064.64
  6. Step 6: Final answer
    x = 61,350.55

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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.