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Finding the Fourth Proportional to 103,631, 155,495.70 and 44,483.60

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Solution

The fourth proportional to 103,631, 155,495.70 and 44,483.60 is: 66,746.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631 : 155,495.70 = 44,483.60 : x
  2. Step 2: Convert to fraction form
    103,631/155,495.70 = 44,483.60/x
  3. Step 3: Cross multiply
    103,631x = 155,495.70 × 44,483.60
  4. Step 4: Simplify right side
    103,631x = 6,917,008,520.52
  5. Step 5: Solve for x
    x = 6,917,008,520.52/103,631
  6. Step 6: Final answer
    x = 66,746.52

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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.