Home / 145,201.92-200,356.99-81,527.41

Finding the Fourth Proportional to 145,201.92, 200,356.99 and 81,527.41

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Solution

The fourth proportional to 145,201.92, 200,356.99 and 81,527.41 is: 112,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,201.92 : 200,356.99 = 81,527.41 : x
  2. Step 2: Convert to fraction form
    145,201.92/200,356.99 = 81,527.41/x
  3. Step 3: Cross multiply
    145,201.92x = 200,356.99 × 81,527.41
  4. Step 4: Simplify right side
    145,201.92x = 16,334,586,975.32
  5. Step 5: Solve for x
    x = 16,334,586,975.32/145,201.92
  6. Step 6: Final answer
    x = 112,495.67

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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.