Home / 239,066.40-329,918.89-131,640.28

Finding the Fourth Proportional to 239,066.40, 329,918.89 and 131,640.28

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Solution

The fourth proportional to 239,066.40, 329,918.89 and 131,640.28 is: 181,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,066.40 : 329,918.89 = 131,640.28 : x
  2. Step 2: Convert to fraction form
    239,066.40/329,918.89 = 131,640.28/x
  3. Step 3: Cross multiply
    239,066.40x = 329,918.89 × 131,640.28
  4. Step 4: Simplify right side
    239,066.40x = 43,430,615,056.89
  5. Step 5: Solve for x
    x = 43,430,615,056.89/239,066.40
  6. Step 6: Final answer
    x = 181,667.58

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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.