Home / 117,136.49-161,648.14-63,421.50

Finding the Fourth Proportional to 117,136.49, 161,648.14 and 63,421.50

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Solution

The fourth proportional to 117,136.49, 161,648.14 and 63,421.50 is: 87,521.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.49 : 161,648.14 = 63,421.50 : x
  2. Step 2: Convert to fraction form
    117,136.49/161,648.14 = 63,421.50/x
  3. Step 3: Cross multiply
    117,136.49x = 161,648.14 × 63,421.50
  4. Step 4: Simplify right side
    117,136.49x = 10,251,967,511.01
  5. Step 5: Solve for x
    x = 10,251,967,511.01/117,136.49
  6. Step 6: Final answer
    x = 87,521.55

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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.