Home / 236,399.12-326,224.35-128,969.14

Finding the Fourth Proportional to 236,399.12, 326,224.35 and 128,969.14

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Solution

The fourth proportional to 236,399.12, 326,224.35 and 128,969.14 is: 177,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,399.12 : 326,224.35 = 128,969.14 : x
  2. Step 2: Convert to fraction form
    236,399.12/326,224.35 = 128,969.14/x
  3. Step 3: Cross multiply
    236,399.12x = 326,224.35 × 128,969.14
  4. Step 4: Simplify right side
    236,399.12x = 42,072,873,051.00
  5. Step 5: Solve for x
    x = 42,072,873,051.00/236,399.12
  6. Step 6: Final answer
    x = 177,973.90

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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.