Home / 136,401.39-188,226.43-75,135.57

Finding the Fourth Proportional to 136,401.39, 188,226.43 and 75,135.57

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Solution

The fourth proportional to 136,401.39, 188,226.43 and 75,135.57 is: 103,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,401.39 : 188,226.43 = 75,135.57 : x
  2. Step 2: Convert to fraction form
    136,401.39/188,226.43 = 75,135.57/x
  3. Step 3: Cross multiply
    136,401.39x = 188,226.43 × 75,135.57
  4. Step 4: Simplify right side
    136,401.39x = 14,142,499,165.98
  5. Step 5: Solve for x
    x = 14,142,499,165.98/136,401.39
  6. Step 6: Final answer
    x = 103,682.96

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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.