Home / 151,434.14-208,976.31-83,457.41

Finding the Fourth Proportional to 151,434.14, 208,976.31 and 83,457.41

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Solution

The fourth proportional to 151,434.14, 208,976.31 and 83,457.41 is: 115,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,434.14 : 208,976.31 = 83,457.41 : x
  2. Step 2: Convert to fraction form
    151,434.14/208,976.31 = 83,457.41/x
  3. Step 3: Cross multiply
    151,434.14x = 208,976.31 × 83,457.41
  4. Step 4: Simplify right side
    151,434.14x = 17,440,620,539.08
  5. Step 5: Solve for x
    x = 17,440,620,539.08/151,434.14
  6. Step 6: Final answer
    x = 115,169.68

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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.