Home / 134,779.02-185,984.55-78,194.04

Finding the Fourth Proportional to 134,779.02, 185,984.55 and 78,194.04

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Solution

The fourth proportional to 134,779.02, 185,984.55 and 78,194.04 is: 107,901.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,779.02 : 185,984.55 = 78,194.04 : x
  2. Step 2: Convert to fraction form
    134,779.02/185,984.55 = 78,194.04/x
  3. Step 3: Cross multiply
    134,779.02x = 185,984.55 × 78,194.04
  4. Step 4: Simplify right side
    134,779.02x = 14,542,883,342.08
  5. Step 5: Solve for x
    x = 14,542,883,342.08/134,779.02
  6. Step 6: Final answer
    x = 107,901.68

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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.