Home / 115,111.72-172,667.58-55,896.64

Finding the Fourth Proportional to 115,111.72, 172,667.58 and 55,896.64

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Solution

The fourth proportional to 115,111.72, 172,667.58 and 55,896.64 is: 83,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,111.72 : 172,667.58 = 55,896.64 : x
  2. Step 2: Convert to fraction form
    115,111.72/172,667.58 = 55,896.64/x
  3. Step 3: Cross multiply
    115,111.72x = 172,667.58 × 55,896.64
  4. Step 4: Simplify right side
    115,111.72x = 9,651,538,328.23
  5. Step 5: Solve for x
    x = 9,651,538,328.23/115,111.72
  6. Step 6: Final answer
    x = 83,844.97

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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.