Home / 189,675.69-261,749.35-103,632.82

Finding the Fourth Proportional to 189,675.69, 261,749.35 and 103,632.82

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Solution

The fourth proportional to 189,675.69, 261,749.35 and 103,632.82 is: 143,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,675.69 : 261,749.35 = 103,632.82 : x
  2. Step 2: Convert to fraction form
    189,675.69/261,749.35 = 103,632.82/x
  3. Step 3: Cross multiply
    189,675.69x = 261,749.35 × 103,632.82
  4. Step 4: Simplify right side
    189,675.69x = 27,125,823,273.67
  5. Step 5: Solve for x
    x = 27,125,823,273.67/189,675.69
  6. Step 6: Final answer
    x = 143,011.60

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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.