Home / 117,485.80-162,126.03-63,769.66

Finding the Fourth Proportional to 117,485.80, 162,126.03 and 63,769.66

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Solution

The fourth proportional to 117,485.80, 162,126.03 and 63,769.66 is: 87,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,485.80 : 162,126.03 = 63,769.66 : x
  2. Step 2: Convert to fraction form
    117,485.80/162,126.03 = 63,769.66/x
  3. Step 3: Cross multiply
    117,485.80x = 162,126.03 × 63,769.66
  4. Step 4: Simplify right side
    117,485.80x = 10,338,721,810.25
  5. Step 5: Solve for x
    x = 10,338,721,810.25/117,485.80
  6. Step 6: Final answer
    x = 87,999.76

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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.