Home / 138,023.41-207,034.80-43,260.81

Finding the Fourth Proportional to 138,023.41, 207,034.80 and 43,260.81

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Solution

The fourth proportional to 138,023.41, 207,034.80 and 43,260.81 is: 64,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,023.41 : 207,034.80 = 43,260.81 : x
  2. Step 2: Convert to fraction form
    138,023.41/207,034.80 = 43,260.81/x
  3. Step 3: Cross multiply
    138,023.41x = 207,034.80 × 43,260.81
  4. Step 4: Simplify right side
    138,023.41x = 8,956,493,146.19
  5. Step 5: Solve for x
    x = 8,956,493,146.19/138,023.41
  6. Step 6: Final answer
    x = 64,891.12

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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.