Home / 189,355.32-261,309.78-104,472.45

Finding the Fourth Proportional to 189,355.32, 261,309.78 and 104,472.45

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Solution

The fourth proportional to 189,355.32, 261,309.78 and 104,472.45 is: 144,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,355.32 : 261,309.78 = 104,472.45 : x
  2. Step 2: Convert to fraction form
    189,355.32/261,309.78 = 104,472.45/x
  3. Step 3: Cross multiply
    189,355.32x = 261,309.78 × 104,472.45
  4. Step 4: Simplify right side
    189,355.32x = 27,299,672,925.56
  5. Step 5: Solve for x
    x = 27,299,672,925.56/189,355.32
  6. Step 6: Final answer
    x = 144,171.67

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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.