Home / 157,836.06-217,805.76-86,202.36

Finding the Fourth Proportional to 157,836.06, 217,805.76 and 86,202.36

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Solution

The fourth proportional to 157,836.06, 217,805.76 and 86,202.36 is: 118,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,836.06 : 217,805.76 = 86,202.36 : x
  2. Step 2: Convert to fraction form
    157,836.06/217,805.76 = 86,202.36/x
  3. Step 3: Cross multiply
    157,836.06x = 217,805.76 × 86,202.36
  4. Step 4: Simplify right side
    157,836.06x = 18,775,370,533.59
  5. Step 5: Solve for x
    x = 18,775,370,533.59/157,836.06
  6. Step 6: Final answer
    x = 118,954.89

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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.