Home / 189,022.41-260,851.69-104,139.47

Finding the Fourth Proportional to 189,022.41, 260,851.69 and 104,139.47

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Solution

The fourth proportional to 189,022.41, 260,851.69 and 104,139.47 is: 143,712.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,022.41 : 260,851.69 = 104,139.47 : x
  2. Step 2: Convert to fraction form
    189,022.41/260,851.69 = 104,139.47/x
  3. Step 3: Cross multiply
    189,022.41x = 260,851.69 × 104,139.47
  4. Step 4: Simplify right side
    189,022.41x = 27,164,957,527.51
  5. Step 5: Solve for x
    x = 27,164,957,527.51/189,022.41
  6. Step 6: Final answer
    x = 143,712.89

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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.