Home / 189,163.07-261,043.32-104,280.13

Finding the Fourth Proportional to 189,163.07, 261,043.32 and 104,280.13

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Solution

The fourth proportional to 189,163.07, 261,043.32 and 104,280.13 is: 143,905.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,163.07 : 261,043.32 = 104,280.13 : x
  2. Step 2: Convert to fraction form
    189,163.07/261,043.32 = 104,280.13/x
  3. Step 3: Cross multiply
    189,163.07x = 261,043.32 × 104,280.13
  4. Step 4: Simplify right side
    189,163.07x = 27,221,631,345.23
  5. Step 5: Solve for x
    x = 27,221,631,345.23/189,163.07
  6. Step 6: Final answer
    x = 143,905.63

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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.