Home / 189,464.28-261,555.18-117,867.32

Finding the Fourth Proportional to 189,464.28, 261,555.18 and 117,867.32

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Solution

The fourth proportional to 189,464.28, 261,555.18 and 117,867.32 is: 162,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,464.28 : 261,555.18 = 117,867.32 : x
  2. Step 2: Convert to fraction form
    189,464.28/261,555.18 = 117,867.32/x
  3. Step 3: Cross multiply
    189,464.28x = 261,555.18 × 117,867.32
  4. Step 4: Simplify right side
    189,464.28x = 30,828,808,098.72
  5. Step 5: Solve for x
    x = 30,828,808,098.72/189,464.28
  6. Step 6: Final answer
    x = 162,715.67

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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.