Home / 136,783.50-188,777.26-113,772.72

Finding the Fourth Proportional to 136,783.50, 188,777.26 and 113,772.72

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Solution

The fourth proportional to 136,783.50, 188,777.26 and 113,772.72 is: 157,019.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,783.50 : 188,777.26 = 113,772.72 : x
  2. Step 2: Convert to fraction form
    136,783.50/188,777.26 = 113,772.72/x
  3. Step 3: Cross multiply
    136,783.50x = 188,777.26 × 113,772.72
  4. Step 4: Simplify right side
    136,783.50x = 21,477,702,344.35
  5. Step 5: Solve for x
    x = 21,477,702,344.35/136,783.50
  6. Step 6: Final answer
    x = 157,019.69

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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.