Home / 157,647.65-217,558.38-86,032.30

Finding the Fourth Proportional to 157,647.65, 217,558.38 and 86,032.30

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Solution

The fourth proportional to 157,647.65, 217,558.38 and 86,032.30 is: 118,727.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,647.65 : 217,558.38 = 86,032.30 : x
  2. Step 2: Convert to fraction form
    157,647.65/217,558.38 = 86,032.30/x
  3. Step 3: Cross multiply
    157,647.65x = 217,558.38 × 86,032.30
  4. Step 4: Simplify right side
    157,647.65x = 18,717,046,727.88
  5. Step 5: Solve for x
    x = 18,717,046,727.88/157,647.65
  6. Step 6: Final answer
    x = 118,727.09

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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.