Home / 118,814.45-163,961.82-70,448.94

Finding the Fourth Proportional to 118,814.45, 163,961.82 and 70,448.94

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Solution

The fourth proportional to 118,814.45, 163,961.82 and 70,448.94 is: 97,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,814.45 : 163,961.82 = 70,448.94 : x
  2. Step 2: Convert to fraction form
    118,814.45/163,961.82 = 70,448.94/x
  3. Step 3: Cross multiply
    118,814.45x = 163,961.82 × 70,448.94
  4. Step 4: Simplify right side
    118,814.45x = 11,550,936,419.47
  5. Step 5: Solve for x
    x = 11,550,936,419.47/118,814.45
  6. Step 6: Final answer
    x = 97,218.28

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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.