Home / 117,057.05-161,538.40-63,342.98

Finding the Fourth Proportional to 117,057.05, 161,538.40 and 63,342.98

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Solution

The fourth proportional to 117,057.05, 161,538.40 and 63,342.98 is: 87,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,057.05 : 161,538.40 = 63,342.98 : x
  2. Step 2: Convert to fraction form
    117,057.05/161,538.40 = 63,342.98/x
  3. Step 3: Cross multiply
    117,057.05x = 161,538.40 × 63,342.98
  4. Step 4: Simplify right side
    117,057.05x = 10,232,323,640.43
  5. Step 5: Solve for x
    x = 10,232,323,640.43/117,057.05
  6. Step 6: Final answer
    x = 87,413.13

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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.