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Finding the Fourth Proportional to 103,633, 155,498.70 and 44,485.60

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Solution

The fourth proportional to 103,633, 155,498.70 and 44,485.60 is: 66,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633 : 155,498.70 = 44,485.60 : x
  2. Step 2: Convert to fraction form
    103,633/155,498.70 = 44,485.60/x
  3. Step 3: Cross multiply
    103,633x = 155,498.70 × 44,485.60
  4. Step 4: Simplify right side
    103,633x = 6,917,452,968.72
  5. Step 5: Solve for x
    x = 6,917,452,968.72/103,633
  6. Step 6: Final answer
    x = 66,749.52

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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.