Home / 135,979.60-203,969.40-104,875.60

Finding the Fourth Proportional to 135,979.60, 203,969.40 and 104,875.60

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Solution

The fourth proportional to 135,979.60, 203,969.40 and 104,875.60 is: 157,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,979.60 : 203,969.40 = 104,875.60 : x
  2. Step 2: Convert to fraction form
    135,979.60/203,969.40 = 104,875.60/x
  3. Step 3: Cross multiply
    135,979.60x = 203,969.40 × 104,875.60
  4. Step 4: Simplify right side
    135,979.60x = 21,391,413,206.64
  5. Step 5: Solve for x
    x = 21,391,413,206.64/135,979.60
  6. Step 6: Final answer
    x = 157,313.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.