Home / 118,904.14-164,089.56-71,159.50

Finding the Fourth Proportional to 118,904.14, 164,089.56 and 71,159.50

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Solution

The fourth proportional to 118,904.14, 164,089.56 and 71,159.50 is: 98,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,904.14 : 164,089.56 = 71,159.50 : x
  2. Step 2: Convert to fraction form
    118,904.14/164,089.56 = 71,159.50/x
  3. Step 3: Cross multiply
    118,904.14x = 164,089.56 × 71,159.50
  4. Step 4: Simplify right side
    118,904.14x = 11,676,531,044.82
  5. Step 5: Solve for x
    x = 11,676,531,044.82/118,904.14
  6. Step 6: Final answer
    x = 98,201.22

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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.