Home / 189,674.77-261,748.11-103,631.90

Finding the Fourth Proportional to 189,674.77, 261,748.11 and 103,631.90

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Solution

The fourth proportional to 189,674.77, 261,748.11 and 103,631.90 is: 143,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,674.77 : 261,748.11 = 103,631.90 : x
  2. Step 2: Convert to fraction form
    189,674.77/261,748.11 = 103,631.90/x
  3. Step 3: Cross multiply
    189,674.77x = 261,748.11 × 103,631.90
  4. Step 4: Simplify right side
    189,674.77x = 27,125,453,960.71
  5. Step 5: Solve for x
    x = 27,125,453,960.71/189,674.77
  6. Step 6: Final answer
    x = 143,010.34

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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.