Home / 117,272.30-161,835.36-63,558.62

Finding the Fourth Proportional to 117,272.30, 161,835.36 and 63,558.62

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Solution

The fourth proportional to 117,272.30, 161,835.36 and 63,558.62 is: 87,710.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,272.30 : 161,835.36 = 63,558.62 : x
  2. Step 2: Convert to fraction form
    117,272.30/161,835.36 = 63,558.62/x
  3. Step 3: Cross multiply
    117,272.30x = 161,835.36 × 63,558.62
  4. Step 4: Simplify right side
    117,272.30x = 10,286,032,148.80
  5. Step 5: Solve for x
    x = 10,286,032,148.80/117,272.30
  6. Step 6: Final answer
    x = 87,710.67

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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.