Home / 147,637.60-203,738.88-80,569.60

Finding the Fourth Proportional to 147,637.60, 203,738.88 and 80,569.60

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Solution

The fourth proportional to 147,637.60, 203,738.88 and 80,569.60 is: 111,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,637.60 : 203,738.88 = 80,569.60 : x
  2. Step 2: Convert to fraction form
    147,637.60/203,738.88 = 80,569.60/x
  3. Step 3: Cross multiply
    147,637.60x = 203,738.88 × 80,569.60
  4. Step 4: Simplify right side
    147,637.60x = 16,415,160,066.05
  5. Step 5: Solve for x
    x = 16,415,160,066.05/147,637.60
  6. Step 6: Final answer
    x = 111,185.50

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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.