Home / 129,779.42-194,669.31-36,285.08

Finding the Fourth Proportional to 129,779.42, 194,669.31 and 36,285.08

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Solution

The fourth proportional to 129,779.42, 194,669.31 and 36,285.08 is: 54,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,779.42 : 194,669.31 = 36,285.08 : x
  2. Step 2: Convert to fraction form
    129,779.42/194,669.31 = 36,285.08/x
  3. Step 3: Cross multiply
    129,779.42x = 194,669.31 × 36,285.08
  4. Step 4: Simplify right side
    129,779.42x = 7,063,591,486.89
  5. Step 5: Solve for x
    x = 7,063,591,486.89/129,779.42
  6. Step 6: Final answer
    x = 54,427.67

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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.