Home / 189,309.66-261,247.35-104,426.94

Finding the Fourth Proportional to 189,309.66, 261,247.35 and 104,426.94

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Solution

The fourth proportional to 189,309.66, 261,247.35 and 104,426.94 is: 144,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,309.66 : 261,247.35 = 104,426.94 : x
  2. Step 2: Convert to fraction form
    189,309.66/261,247.35 = 104,426.94/x
  3. Step 3: Cross multiply
    189,309.66x = 261,247.35 × 104,426.94
  4. Step 4: Simplify right side
    189,309.66x = 27,281,261,343.61
  5. Step 5: Solve for x
    x = 27,281,261,343.61/189,309.66
  6. Step 6: Final answer
    x = 144,109.19

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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.