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Finding the Fourth Proportional to 74,693.60, 112,040.40 and 74,175.20

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Solution

The fourth proportional to 74,693.60, 112,040.40 and 74,175.20 is: 111,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,693.60 : 112,040.40 = 74,175.20 : x
  2. Step 2: Convert to fraction form
    74,693.60/112,040.40 = 74,175.20/x
  3. Step 3: Cross multiply
    74,693.60x = 112,040.40 × 74,175.20
  4. Step 4: Simplify right side
    74,693.60x = 8,310,619,078.08
  5. Step 5: Solve for x
    x = 8,310,619,078.08/74,693.60
  6. Step 6: Final answer
    x = 111,262.80

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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.