Home / 161,686.72-223,136.60-97,175.68

Finding the Fourth Proportional to 161,686.72, 223,136.60 and 97,175.68

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Solution

The fourth proportional to 161,686.72, 223,136.60 and 97,175.68 is: 134,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,686.72 : 223,136.60 = 97,175.68 : x
  2. Step 2: Convert to fraction form
    161,686.72/223,136.60 = 97,175.68/x
  3. Step 3: Cross multiply
    161,686.72x = 223,136.60 × 97,175.68
  4. Step 4: Simplify right side
    161,686.72x = 21,683,450,837.89
  5. Step 5: Solve for x
    x = 21,683,450,837.89/161,686.72
  6. Step 6: Final answer
    x = 134,107.80

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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.