Home / 102,781.51-154,170.57-30,734.57

Finding the Fourth Proportional to 102,781.51, 154,170.57 and 30,734.57

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Solution

The fourth proportional to 102,781.51, 154,170.57 and 30,734.57 is: 46,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,781.51 : 154,170.57 = 30,734.57 : x
  2. Step 2: Convert to fraction form
    102,781.51/154,170.57 = 30,734.57/x
  3. Step 3: Cross multiply
    102,781.51x = 154,170.57 × 30,734.57
  4. Step 4: Simplify right side
    102,781.51x = 4,738,366,676.29
  5. Step 5: Solve for x
    x = 4,738,366,676.29/102,781.51
  6. Step 6: Final answer
    x = 46,101.35

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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.