Home / 147,581.70-203,661.80-83,919.50

Finding the Fourth Proportional to 147,581.70, 203,661.80 and 83,919.50

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Solution

The fourth proportional to 147,581.70, 203,661.80 and 83,919.50 is: 115,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,581.70 : 203,661.80 = 83,919.50 : x
  2. Step 2: Convert to fraction form
    147,581.70/203,661.80 = 83,919.50/x
  3. Step 3: Cross multiply
    147,581.70x = 203,661.80 × 83,919.50
  4. Step 4: Simplify right side
    147,581.70x = 17,091,196,425.10
  5. Step 5: Solve for x
    x = 17,091,196,425.10/147,581.70
  6. Step 6: Final answer
    x = 115,808.37

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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.