Home / 189,723.39-261,818.37-104,840.45

Finding the Fourth Proportional to 189,723.39, 261,818.37 and 104,840.45

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Solution

The fourth proportional to 189,723.39, 261,818.37 and 104,840.45 is: 144,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,723.39 : 261,818.37 = 104,840.45 : x
  2. Step 2: Convert to fraction form
    189,723.39/261,818.37 = 104,840.45/x
  3. Step 3: Cross multiply
    189,723.39x = 261,818.37 × 104,840.45
  4. Step 4: Simplify right side
    189,723.39x = 27,449,155,729.07
  5. Step 5: Solve for x
    x = 27,449,155,729.07/189,723.39
  6. Step 6: Final answer
    x = 144,679.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.