Home / 165,415.04-228,273-89,963.36

Finding the Fourth Proportional to 165,415.04, 228,273 and 89,963.36

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Solution

The fourth proportional to 165,415.04, 228,273 and 89,963.36 is: 124,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,415.04 : 228,273 = 89,963.36 : x
  2. Step 2: Convert to fraction form
    165,415.04/228,273 = 89,963.36/x
  3. Step 3: Cross multiply
    165,415.04x = 228,273 × 89,963.36
  4. Step 4: Simplify right side
    165,415.04x = 20,536,206,077.28
  5. Step 5: Solve for x
    x = 20,536,206,077.28/165,415.04
  6. Step 6: Final answer
    x = 124,149.57

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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.