Home / 117,018.29-161,485.11-63,303.19

Finding the Fourth Proportional to 117,018.29, 161,485.11 and 63,303.19

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Solution

The fourth proportional to 117,018.29, 161,485.11 and 63,303.19 is: 87,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,018.29 : 161,485.11 = 63,303.19 : x
  2. Step 2: Convert to fraction form
    117,018.29/161,485.11 = 63,303.19/x
  3. Step 3: Cross multiply
    117,018.29x = 161,485.11 × 63,303.19
  4. Step 4: Simplify right side
    117,018.29x = 10,222,522,196.79
  5. Step 5: Solve for x
    x = 10,222,522,196.79/117,018.29
  6. Step 6: Final answer
    x = 87,358.33

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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.