Home / 147,344.71-203,352.55-81,940.06

Finding the Fourth Proportional to 147,344.71, 203,352.55 and 81,940.06

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Solution

The fourth proportional to 147,344.71, 203,352.55 and 81,940.06 is: 113,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,344.71 : 203,352.55 = 81,940.06 : x
  2. Step 2: Convert to fraction form
    147,344.71/203,352.55 = 81,940.06/x
  3. Step 3: Cross multiply
    147,344.71x = 203,352.55 × 81,940.06
  4. Step 4: Simplify right side
    147,344.71x = 16,662,720,148.15
  5. Step 5: Solve for x
    x = 16,662,720,148.15/147,344.71
  6. Step 6: Final answer
    x = 113,086.65

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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.