Home / 189,625.63-261,681.10-103,583.56

Finding the Fourth Proportional to 189,625.63, 261,681.10 and 103,583.56

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Solution

The fourth proportional to 189,625.63, 261,681.10 and 103,583.56 is: 142,944.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,625.63 : 261,681.10 = 103,583.56 : x
  2. Step 2: Convert to fraction form
    189,625.63/261,681.10 = 103,583.56/x
  3. Step 3: Cross multiply
    189,625.63x = 261,681.10 × 103,583.56
  4. Step 4: Simplify right side
    189,625.63x = 27,105,859,922.72
  5. Step 5: Solve for x
    x = 27,105,859,922.72/189,625.63
  6. Step 6: Final answer
    x = 142,944.07

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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.