Home / 141,177.90-194,739.87-83,779.41

Finding the Fourth Proportional to 141,177.90, 194,739.87 and 83,779.41

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Solution

The fourth proportional to 141,177.90, 194,739.87 and 83,779.41 is: 115,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,177.90 : 194,739.87 = 83,779.41 : x
  2. Step 2: Convert to fraction form
    141,177.90/194,739.87 = 83,779.41/x
  3. Step 3: Cross multiply
    141,177.90x = 194,739.87 × 83,779.41
  4. Step 4: Simplify right side
    141,177.90x = 16,315,191,412.08
  5. Step 5: Solve for x
    x = 16,315,191,412.08/141,177.90
  6. Step 6: Final answer
    x = 115,564.77

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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.