Home / 117,216.45-161,758.49-63,502.81

Finding the Fourth Proportional to 117,216.45, 161,758.49 and 63,502.81

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Solution

The fourth proportional to 117,216.45, 161,758.49 and 63,502.81 is: 87,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,216.45 : 161,758.49 = 63,502.81 : x
  2. Step 2: Convert to fraction form
    117,216.45/161,758.49 = 63,502.81/x
  3. Step 3: Cross multiply
    117,216.45x = 161,758.49 × 63,502.81
  4. Step 4: Simplify right side
    117,216.45x = 10,272,117,934.45
  5. Step 5: Solve for x
    x = 10,272,117,934.45/117,216.45
  6. Step 6: Final answer
    x = 87,633.76

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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.