Home / 189,225.20-261,131.32-104,340.40

Finding the Fourth Proportional to 189,225.20, 261,131.32 and 104,340.40

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Solution

The fourth proportional to 189,225.20, 261,131.32 and 104,340.40 is: 143,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.20 : 261,131.32 = 104,340.40 : x
  2. Step 2: Convert to fraction form
    189,225.20/261,131.32 = 104,340.40/x
  3. Step 3: Cross multiply
    189,225.20x = 261,131.32 × 104,340.40
  4. Step 4: Simplify right side
    189,225.20x = 27,246,546,381.33
  5. Step 5: Solve for x
    x = 27,246,546,381.33/189,225.20
  6. Step 6: Final answer
    x = 143,990.05

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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.