Home / 118,902.16-164,086.80-71,157.52

Finding the Fourth Proportional to 118,902.16, 164,086.80 and 71,157.52

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Solution

The fourth proportional to 118,902.16, 164,086.80 and 71,157.52 is: 98,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,902.16 : 164,086.80 = 71,157.52 : x
  2. Step 2: Convert to fraction form
    118,902.16/164,086.80 = 71,157.52/x
  3. Step 3: Cross multiply
    118,902.16x = 164,086.80 × 71,157.52
  4. Step 4: Simplify right side
    118,902.16x = 11,676,009,752.74
  5. Step 5: Solve for x
    x = 11,676,009,752.74/118,902.16
  6. Step 6: Final answer
    x = 98,198.47

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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.