Home / 111,050.28-153,219.06-63,286.20

Finding the Fourth Proportional to 111,050.28, 153,219.06 and 63,286.20

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Solution

The fourth proportional to 111,050.28, 153,219.06 and 63,286.20 is: 87,317.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,050.28 : 153,219.06 = 63,286.20 : x
  2. Step 2: Convert to fraction form
    111,050.28/153,219.06 = 63,286.20/x
  3. Step 3: Cross multiply
    111,050.28x = 153,219.06 × 63,286.20
  4. Step 4: Simplify right side
    111,050.28x = 9,696,652,074.97
  5. Step 5: Solve for x
    x = 9,696,652,074.97/111,050.28
  6. Step 6: Final answer
    x = 87,317.67

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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.