Home / 189,201.08-261,097.16-104,318.40

Finding the Fourth Proportional to 189,201.08, 261,097.16 and 104,318.40

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Solution

The fourth proportional to 189,201.08, 261,097.16 and 104,318.40 is: 143,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,201.08 : 261,097.16 = 104,318.40 : x
  2. Step 2: Convert to fraction form
    189,201.08/261,097.16 = 104,318.40/x
  3. Step 3: Cross multiply
    189,201.08x = 261,097.16 × 104,318.40
  4. Step 4: Simplify right side
    189,201.08x = 27,237,237,975.74
  5. Step 5: Solve for x
    x = 27,237,237,975.74/189,201.08
  6. Step 6: Final answer
    x = 143,959.21

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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.