Home / 157,865.37-217,842.74-86,230.17

Finding the Fourth Proportional to 157,865.37, 217,842.74 and 86,230.17

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Solution

The fourth proportional to 157,865.37, 217,842.74 and 86,230.17 is: 118,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,865.37 : 217,842.74 = 86,230.17 : x
  2. Step 2: Convert to fraction form
    157,865.37/217,842.74 = 86,230.17/x
  3. Step 3: Cross multiply
    157,865.37x = 217,842.74 × 86,230.17
  4. Step 4: Simplify right side
    157,865.37x = 18,784,616,072.32
  5. Step 5: Solve for x
    x = 18,784,616,072.32/157,865.37
  6. Step 6: Final answer
    x = 118,991.37

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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.