Home / 100,403.94-150,516.42-38,118.18

Finding the Fourth Proportional to 100,403.94, 150,516.42 and 38,118.18

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Solution

The fourth proportional to 100,403.94, 150,516.42 and 38,118.18 is: 57,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,403.94 : 150,516.42 = 38,118.18 : x
  2. Step 2: Convert to fraction form
    100,403.94/150,516.42 = 38,118.18/x
  3. Step 3: Cross multiply
    100,403.94x = 150,516.42 × 38,118.18
  4. Step 4: Simplify right side
    100,403.94x = 5,737,411,990.52
  5. Step 5: Solve for x
    x = 5,737,411,990.52/100,403.94
  6. Step 6: Final answer
    x = 57,143.30

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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.