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Finding the Fourth Proportional to 104,188, 143,779.56 and 56,441.68

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Solution

The fourth proportional to 104,188, 143,779.56 and 56,441.68 is: 77,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,188 : 143,779.56 = 56,441.68 : x
  2. Step 2: Convert to fraction form
    104,188/143,779.56 = 56,441.68/x
  3. Step 3: Cross multiply
    104,188x = 143,779.56 × 56,441.68
  4. Step 4: Simplify right side
    104,188x = 8,115,159,916.06
  5. Step 5: Solve for x
    x = 8,115,159,916.06/104,188
  6. Step 6: Final answer
    x = 77,889.58

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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.