Home / 100,395.41-150,615.38-30,269.66

Finding the Fourth Proportional to 100,395.41, 150,615.38 and 30,269.66

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Solution

The fourth proportional to 100,395.41, 150,615.38 and 30,269.66 is: 45,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,395.41 : 150,615.38 = 30,269.66 : x
  2. Step 2: Convert to fraction form
    100,395.41/150,615.38 = 30,269.66/x
  3. Step 3: Cross multiply
    100,395.41x = 150,615.38 × 30,269.66
  4. Step 4: Simplify right side
    100,395.41x = 4,559,075,665.97
  5. Step 5: Solve for x
    x = 4,559,075,665.97/100,395.41
  6. Step 6: Final answer
    x = 45,411.20

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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.