Home / 115,114.72-172,672.08-55,899.64

Finding the Fourth Proportional to 115,114.72, 172,672.08 and 55,899.64

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Solution

The fourth proportional to 115,114.72, 172,672.08 and 55,899.64 is: 83,849.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,114.72 : 172,672.08 = 55,899.64 : x
  2. Step 2: Convert to fraction form
    115,114.72/172,672.08 = 55,899.64/x
  3. Step 3: Cross multiply
    115,114.72x = 172,672.08 × 55,899.64
  4. Step 4: Simplify right side
    115,114.72x = 9,652,307,110.05
  5. Step 5: Solve for x
    x = 9,652,307,110.05/115,114.72
  6. Step 6: Final answer
    x = 83,849.46

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Similar ratio
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1.5x scale

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.