Home / 117,018.28-161,485.62-63,303.52

Finding the Fourth Proportional to 117,018.28, 161,485.62 and 63,303.52

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Solution

The fourth proportional to 117,018.28, 161,485.62 and 63,303.52 is: 87,359.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,018.28 : 161,485.62 = 63,303.52 : x
  2. Step 2: Convert to fraction form
    117,018.28/161,485.62 = 63,303.52/x
  3. Step 3: Cross multiply
    117,018.28x = 161,485.62 × 63,303.52
  4. Step 4: Simplify right side
    117,018.28x = 10,222,608,175.38
  5. Step 5: Solve for x
    x = 10,222,608,175.38/117,018.28
  6. Step 6: Final answer
    x = 87,359.07

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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.