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Finding the Fourth Proportional to 138,015.58, 207,023.14 and 43,253.06

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Solution

The fourth proportional to 138,015.58, 207,023.14 and 43,253.06 is: 64,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,015.58 : 207,023.14 = 43,253.06 : x
  2. Step 2: Convert to fraction form
    138,015.58/207,023.14 = 43,253.06/x
  3. Step 3: Cross multiply
    138,015.58x = 207,023.14 × 43,253.06
  4. Step 4: Simplify right side
    138,015.58x = 8,954,384,295.81
  5. Step 5: Solve for x
    x = 8,954,384,295.81/138,015.58
  6. Step 6: Final answer
    x = 64,879.52

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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.