Home / 143,633.64-215,045.40-76,012.50

Finding the Fourth Proportional to 143,633.64, 215,045.40 and 76,012.50

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Solution

The fourth proportional to 143,633.64, 215,045.40 and 76,012.50 is: 113,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,633.64 : 215,045.40 = 76,012.50 : x
  2. Step 2: Convert to fraction form
    143,633.64/215,045.40 = 76,012.50/x
  3. Step 3: Cross multiply
    143,633.64x = 215,045.40 × 76,012.50
  4. Step 4: Simplify right side
    143,633.64x = 16,346,138,467.50
  5. Step 5: Solve for x
    x = 16,346,138,467.50/143,633.64
  6. Step 6: Final answer
    x = 113,804.39

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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.