Home / 137,773.08-190,104.21-81,176.76

Finding the Fourth Proportional to 137,773.08, 190,104.21 and 81,176.76

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Solution

The fourth proportional to 137,773.08, 190,104.21 and 81,176.76 is: 112,010.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,773.08 : 190,104.21 = 81,176.76 : x
  2. Step 2: Convert to fraction form
    137,773.08/190,104.21 = 81,176.76/x
  3. Step 3: Cross multiply
    137,773.08x = 190,104.21 × 81,176.76
  4. Step 4: Simplify right side
    137,773.08x = 15,432,043,830.16
  5. Step 5: Solve for x
    x = 15,432,043,830.16/137,773.08
  6. Step 6: Final answer
    x = 112,010.59

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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.