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Finding the Fourth Proportional to 103,653.74, 155,480.07 and 40,480.27

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Solution

The fourth proportional to 103,653.74, 155,480.07 and 40,480.27 is: 60,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,653.74 : 155,480.07 = 40,480.27 : x
  2. Step 2: Convert to fraction form
    103,653.74/155,480.07 = 40,480.27/x
  3. Step 3: Cross multiply
    103,653.74x = 155,480.07 × 40,480.27
  4. Step 4: Simplify right side
    103,653.74x = 6,293,875,559.37
  5. Step 5: Solve for x
    x = 6,293,875,559.37/103,653.74
  6. Step 6: Final answer
    x = 60,720.20

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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.