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Finding the Fourth Proportional to 103,663.53, 155,495.29 and 51,175.53

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Solution

The fourth proportional to 103,663.53, 155,495.29 and 51,175.53 is: 76,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.53 : 155,495.29 = 51,175.53 : x
  2. Step 2: Convert to fraction form
    103,663.53/155,495.29 = 51,175.53/x
  3. Step 3: Cross multiply
    103,663.53x = 155,495.29 × 51,175.53
  4. Step 4: Simplify right side
    103,663.53x = 7,957,553,878.25
  5. Step 5: Solve for x
    x = 7,957,553,878.25/103,663.53
  6. Step 6: Final answer
    x = 76,763.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.