Home / 136,587.64-188,503.38-82,886.32

Finding the Fourth Proportional to 136,587.64, 188,503.38 and 82,886.32

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Solution

The fourth proportional to 136,587.64, 188,503.38 and 82,886.32 is: 114,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,587.64 : 188,503.38 = 82,886.32 : x
  2. Step 2: Convert to fraction form
    136,587.64/188,503.38 = 82,886.32/x
  3. Step 3: Cross multiply
    136,587.64x = 188,503.38 × 82,886.32
  4. Step 4: Simplify right side
    136,587.64x = 15,624,351,475.76
  5. Step 5: Solve for x
    x = 15,624,351,475.76/136,587.64
  6. Step 6: Final answer
    x = 114,390.67

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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.