Home / 118,965.14-164,172.70-65,250.53

Finding the Fourth Proportional to 118,965.14, 164,172.70 and 65,250.53

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Solution

The fourth proportional to 118,965.14, 164,172.70 and 65,250.53 is: 90,046.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,965.14 : 164,172.70 = 65,250.53 : x
  2. Step 2: Convert to fraction form
    118,965.14/164,172.70 = 65,250.53/x
  3. Step 3: Cross multiply
    118,965.14x = 164,172.70 × 65,250.53
  4. Step 4: Simplify right side
    118,965.14x = 10,712,355,686.53
  5. Step 5: Solve for x
    x = 10,712,355,686.53/118,965.14
  6. Step 6: Final answer
    x = 90,046.17

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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.