Home / 103,416.51-155,106.30-27,515.49

Finding the Fourth Proportional to 103,416.51, 155,106.30 and 27,515.49

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Solution

The fourth proportional to 103,416.51, 155,106.30 and 27,515.49 is: 41,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,416.51 : 155,106.30 = 27,515.49 : x
  2. Step 2: Convert to fraction form
    103,416.51/155,106.30 = 27,515.49/x
  3. Step 3: Cross multiply
    103,416.51x = 155,106.30 × 27,515.49
  4. Step 4: Simplify right side
    103,416.51x = 4,267,825,368.12
  5. Step 5: Solve for x
    x = 4,267,825,368.12/103,416.51
  6. Step 6: Final answer
    x = 41,268.32

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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.