Home / 117,910.95-162,407.16-90,634.86

Finding the Fourth Proportional to 117,910.95, 162,407.16 and 90,634.86

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Solution

The fourth proportional to 117,910.95, 162,407.16 and 90,634.86 is: 124,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,910.95 : 162,407.16 = 90,634.86 : x
  2. Step 2: Convert to fraction form
    117,910.95/162,407.16 = 90,634.86/x
  3. Step 3: Cross multiply
    117,910.95x = 162,407.16 × 90,634.86
  4. Step 4: Simplify right side
    117,910.95x = 14,719,750,209.60
  5. Step 5: Solve for x
    x = 14,719,750,209.60/117,910.95
  6. Step 6: Final answer
    x = 124,837.86

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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.