Home / 85,774.87-118,266.37-73,817.65

Finding the Fourth Proportional to 85,774.87, 118,266.37 and 73,817.65

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Solution

The fourth proportional to 85,774.87, 118,266.37 and 73,817.65 is: 101,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,774.87 : 118,266.37 = 73,817.65 : x
  2. Step 2: Convert to fraction form
    85,774.87/118,266.37 = 73,817.65/x
  3. Step 3: Cross multiply
    85,774.87x = 118,266.37 × 73,817.65
  4. Step 4: Simplify right side
    85,774.87x = 8,730,145,507.43
  5. Step 5: Solve for x
    x = 8,730,145,507.43/85,774.87
  6. Step 6: Final answer
    x = 101,779.76

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1.5x scale

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.