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Finding the Fourth Proportional to 189,373.10, 261,340.31 and 104,495.63

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Solution

The fourth proportional to 189,373.10, 261,340.31 and 104,495.63 is: 144,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,373.10 : 261,340.31 = 104,495.63 : x
  2. Step 2: Convert to fraction form
    189,373.10/261,340.31 = 104,495.63/x
  3. Step 3: Cross multiply
    189,373.10x = 261,340.31 × 104,495.63
  4. Step 4: Simplify right side
    189,373.10x = 27,308,919,815.37
  5. Step 5: Solve for x
    x = 27,308,919,815.37/189,373.10
  6. Step 6: Final answer
    x = 144,206.96

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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.