Home / 166,364.82-249,645.51-87,485.13

Finding the Fourth Proportional to 166,364.82, 249,645.51 and 87,485.13

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Solution

The fourth proportional to 166,364.82, 249,645.51 and 87,485.13 is: 131,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,364.82 : 249,645.51 = 87,485.13 : x
  2. Step 2: Convert to fraction form
    166,364.82/249,645.51 = 87,485.13/x
  3. Step 3: Cross multiply
    166,364.82x = 249,645.51 × 87,485.13
  4. Step 4: Simplify right side
    166,364.82x = 21,840,269,896.27
  5. Step 5: Solve for x
    x = 21,840,269,896.27/166,364.82
  6. Step 6: Final answer
    x = 131,279.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.