Home / 155,828.88-215,028-92,154.24

Finding the Fourth Proportional to 155,828.88, 215,028 and 92,154.24

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Solution

The fourth proportional to 155,828.88, 215,028 and 92,154.24 is: 127,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,828.88 : 215,028 = 92,154.24 : x
  2. Step 2: Convert to fraction form
    155,828.88/215,028 = 92,154.24/x
  3. Step 3: Cross multiply
    155,828.88x = 215,028 × 92,154.24
  4. Step 4: Simplify right side
    155,828.88x = 19,815,741,918.72
  5. Step 5: Solve for x
    x = 19,815,741,918.72/155,828.88
  6. Step 6: Final answer
    x = 127,163.48

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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.