Home / 147,190.80-203,111.72-83,528.60

Finding the Fourth Proportional to 147,190.80, 203,111.72 and 83,528.60

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Solution

The fourth proportional to 147,190.80, 203,111.72 and 83,528.60 is: 115,262.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,190.80 : 203,111.72 = 83,528.60 : x
  2. Step 2: Convert to fraction form
    147,190.80/203,111.72 = 83,528.60/x
  3. Step 3: Cross multiply
    147,190.80x = 203,111.72 × 83,528.60
  4. Step 4: Simplify right side
    147,190.80x = 16,965,637,615.19
  5. Step 5: Solve for x
    x = 16,965,637,615.19/147,190.80
  6. Step 6: Final answer
    x = 115,262.89

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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.