Home / 103,634.03-155,417.94-40,438.74

Finding the Fourth Proportional to 103,634.03, 155,417.94 and 40,438.74

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Solution

The fourth proportional to 103,634.03, 155,417.94 and 40,438.74 is: 60,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,634.03 : 155,417.94 = 40,438.74 : x
  2. Step 2: Convert to fraction form
    103,634.03/155,417.94 = 40,438.74/x
  3. Step 3: Cross multiply
    103,634.03x = 155,417.94 × 40,438.74
  4. Step 4: Simplify right side
    103,634.03x = 6,284,906,249.81
  5. Step 5: Solve for x
    x = 6,284,906,249.81/103,634.03
  6. Step 6: Final answer
    x = 60,645.20

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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.