Home / 142,633.64-213,999.24-53,912.72

Finding the Fourth Proportional to 142,633.64, 213,999.24 and 53,912.72

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Solution

The fourth proportional to 142,633.64, 213,999.24 and 53,912.72 is: 80,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,633.64 : 213,999.24 = 53,912.72 : x
  2. Step 2: Convert to fraction form
    142,633.64/213,999.24 = 53,912.72/x
  3. Step 3: Cross multiply
    142,633.64x = 213,999.24 × 53,912.72
  4. Step 4: Simplify right side
    142,633.64x = 11,537,281,106.33
  5. Step 5: Solve for x
    x = 11,537,281,106.33/142,633.64
  6. Step 6: Final answer
    x = 80,887.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.