Home / 102,790.05-154,243.39-40,504.29

Finding the Fourth Proportional to 102,790.05, 154,243.39 and 40,504.29

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Solution

The fourth proportional to 102,790.05, 154,243.39 and 40,504.29 is: 60,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,790.05 : 154,243.39 = 40,504.29 : x
  2. Step 2: Convert to fraction form
    102,790.05/154,243.39 = 40,504.29/x
  3. Step 3: Cross multiply
    102,790.05x = 154,243.39 × 40,504.29
  4. Step 4: Simplify right side
    102,790.05x = 6,247,518,999.14
  5. Step 5: Solve for x
    x = 6,247,518,999.14/102,790.05
  6. Step 6: Final answer
    x = 60,779.41

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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.