Home / 118,913.08-164,120.85-90,327.37

Finding the Fourth Proportional to 118,913.08, 164,120.85 and 90,327.37

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Solution

The fourth proportional to 118,913.08, 164,120.85 and 90,327.37 is: 124,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,913.08 : 164,120.85 = 90,327.37 : x
  2. Step 2: Convert to fraction form
    118,913.08/164,120.85 = 90,327.37/x
  3. Step 3: Cross multiply
    118,913.08x = 164,120.85 × 90,327.37
  4. Step 4: Simplify right side
    118,913.08x = 14,824,604,742.66
  5. Step 5: Solve for x
    x = 14,824,604,742.66/118,913.08
  6. Step 6: Final answer
    x = 124,667.57

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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.