Home / 117,193.51-161,727.09-63,478.36

Finding the Fourth Proportional to 117,193.51, 161,727.09 and 63,478.36

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Solution

The fourth proportional to 117,193.51, 161,727.09 and 63,478.36 is: 87,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,193.51 : 161,727.09 = 63,478.36 : x
  2. Step 2: Convert to fraction form
    117,193.51/161,727.09 = 63,478.36/x
  3. Step 3: Cross multiply
    117,193.51x = 161,727.09 × 63,478.36
  4. Step 4: Simplify right side
    117,193.51x = 10,266,170,036.45
  5. Step 5: Solve for x
    x = 10,266,170,036.45/117,193.51
  6. Step 6: Final answer
    x = 87,600.16

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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.