Home / 140,389.05-210,636.63-84,268.27

Finding the Fourth Proportional to 140,389.05, 210,636.63 and 84,268.27

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Solution

The fourth proportional to 140,389.05, 210,636.63 and 84,268.27 is: 126,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,389.05 : 210,636.63 = 84,268.27 : x
  2. Step 2: Convert to fraction form
    140,389.05/210,636.63 = 84,268.27/x
  3. Step 3: Cross multiply
    140,389.05x = 210,636.63 × 84,268.27
  4. Step 4: Simplify right side
    140,389.05x = 17,749,985,027.44
  5. Step 5: Solve for x
    x = 17,749,985,027.44/140,389.05
  6. Step 6: Final answer
    x = 126,434.26

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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.