Home / 117,219.51-161,762.73-63,504.75

Finding the Fourth Proportional to 117,219.51, 161,762.73 and 63,504.75

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Solution

The fourth proportional to 117,219.51, 161,762.73 and 63,504.75 is: 87,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,219.51 : 161,762.73 = 63,504.75 : x
  2. Step 2: Convert to fraction form
    117,219.51/161,762.73 = 63,504.75/x
  3. Step 3: Cross multiply
    117,219.51x = 161,762.73 × 63,504.75
  4. Step 4: Simplify right side
    117,219.51x = 10,272,701,727.97
  5. Step 5: Solve for x
    x = 10,272,701,727.97/117,219.51
  6. Step 6: Final answer
    x = 87,636.45

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1.5x scale

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.