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Finding the Fourth Proportional to 136,779.66, 188,607.15 and 88,944.30

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Solution

The fourth proportional to 136,779.66, 188,607.15 and 88,944.30 is: 122,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,779.66 : 188,607.15 = 88,944.30 : x
  2. Step 2: Convert to fraction form
    136,779.66/188,607.15 = 88,944.30/x
  3. Step 3: Cross multiply
    136,779.66x = 188,607.15 × 88,944.30
  4. Step 4: Simplify right side
    136,779.66x = 16,775,530,931.75
  5. Step 5: Solve for x
    x = 16,775,530,931.75/136,779.66
  6. Step 6: Final answer
    x = 122,646.39

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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.