Home / 189,717.12-261,811.44-104,835.60

Finding the Fourth Proportional to 189,717.12, 261,811.44 and 104,835.60

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Solution

The fourth proportional to 189,717.12, 261,811.44 and 104,835.60 is: 144,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,717.12 : 261,811.44 = 104,835.60 : x
  2. Step 2: Convert to fraction form
    189,717.12/261,811.44 = 104,835.60/x
  3. Step 3: Cross multiply
    189,717.12x = 261,811.44 × 104,835.60
  4. Step 4: Simplify right side
    189,717.12x = 27,447,159,399.26
  5. Step 5: Solve for x
    x = 27,447,159,399.26/189,717.12
  6. Step 6: Final answer
    x = 144,674.13

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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.