Home / 117,136.18-161,648.22-63,421.84

Finding the Fourth Proportional to 117,136.18, 161,648.22 and 63,421.84

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Solution

The fourth proportional to 117,136.18, 161,648.22 and 63,421.84 is: 87,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.18 : 161,648.22 = 63,421.84 : x
  2. Step 2: Convert to fraction form
    117,136.18/161,648.22 = 63,421.84/x
  3. Step 3: Cross multiply
    117,136.18x = 161,648.22 × 63,421.84
  4. Step 4: Simplify right side
    117,136.18x = 10,252,027,545.12
  5. Step 5: Solve for x
    x = 10,252,027,545.12/117,136.18
  6. Step 6: Final answer
    x = 87,522.30

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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.