Home / 117,303.44-161,876.76-66,315.38

Finding the Fourth Proportional to 117,303.44, 161,876.76 and 66,315.38

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Solution

The fourth proportional to 117,303.44, 161,876.76 and 66,315.38 is: 91,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,303.44 : 161,876.76 = 66,315.38 : x
  2. Step 2: Convert to fraction form
    117,303.44/161,876.76 = 66,315.38/x
  3. Step 3: Cross multiply
    117,303.44x = 161,876.76 × 66,315.38
  4. Step 4: Simplify right side
    117,303.44x = 10,734,918,852.57
  5. Step 5: Solve for x
    x = 10,734,918,852.57/117,303.44
  6. Step 6: Final answer
    x = 91,514.10

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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.