Home / 136,431.09-188,249.90-76,000.23

Finding the Fourth Proportional to 136,431.09, 188,249.90 and 76,000.23

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Solution

The fourth proportional to 136,431.09, 188,249.90 and 76,000.23 is: 104,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,431.09 : 188,249.90 = 76,000.23 : x
  2. Step 2: Convert to fraction form
    136,431.09/188,249.90 = 76,000.23/x
  3. Step 3: Cross multiply
    136,431.09x = 188,249.90 × 76,000.23
  4. Step 4: Simplify right side
    136,431.09x = 14,307,035,317.48
  5. Step 5: Solve for x
    x = 14,307,035,317.48/136,431.09
  6. Step 6: Final answer
    x = 104,866.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.