Home / 147,783.32-203,941.20-84,121.12

Finding the Fourth Proportional to 147,783.32, 203,941.20 and 84,121.12

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Solution

The fourth proportional to 147,783.32, 203,941.20 and 84,121.12 is: 116,087.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,783.32 : 203,941.20 = 84,121.12 : x
  2. Step 2: Convert to fraction form
    147,783.32/203,941.20 = 84,121.12/x
  3. Step 3: Cross multiply
    147,783.32x = 203,941.20 × 84,121.12
  4. Step 4: Simplify right side
    147,783.32x = 17,155,762,158.14
  5. Step 5: Solve for x
    x = 17,155,762,158.14/147,783.32
  6. Step 6: Final answer
    x = 116,087.27

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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.