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Finding the Fourth Proportional to 118,954.74, 164,159.64 and 65,239.29

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Solution

The fourth proportional to 118,954.74, 164,159.64 and 65,239.29 is: 90,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,954.74 : 164,159.64 = 65,239.29 : x
  2. Step 2: Convert to fraction form
    118,954.74/164,159.64 = 65,239.29/x
  3. Step 3: Cross multiply
    118,954.74x = 164,159.64 × 65,239.29
  4. Step 4: Simplify right side
    118,954.74x = 10,709,658,360.26
  5. Step 5: Solve for x
    x = 10,709,658,360.26/118,954.74
  6. Step 6: Final answer
    x = 90,031.37

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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.