Home / 189,429.60-261,446.74-112,953.62

Finding the Fourth Proportional to 189,429.60, 261,446.74 and 112,953.62

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Solution

The fourth proportional to 189,429.60, 261,446.74 and 112,953.62 is: 155,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,429.60 : 261,446.74 = 112,953.62 : x
  2. Step 2: Convert to fraction form
    189,429.60/261,446.74 = 112,953.62/x
  3. Step 3: Cross multiply
    189,429.60x = 261,446.74 × 112,953.62
  4. Step 4: Simplify right side
    189,429.60x = 29,531,355,720.20
  5. Step 5: Solve for x
    x = 29,531,355,720.20/189,429.60
  6. Step 6: Final answer
    x = 155,896.20

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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.