Home / 120,134.22-180,026.37-57,731.82

Finding the Fourth Proportional to 120,134.22, 180,026.37 and 57,731.82

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Solution

The fourth proportional to 120,134.22, 180,026.37 and 57,731.82 is: 86,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,134.22 : 180,026.37 = 57,731.82 : x
  2. Step 2: Convert to fraction form
    120,134.22/180,026.37 = 57,731.82/x
  3. Step 3: Cross multiply
    120,134.22x = 180,026.37 × 57,731.82
  4. Step 4: Simplify right side
    120,134.22x = 10,393,249,988.09
  5. Step 5: Solve for x
    x = 10,393,249,988.09/120,134.22
  6. Step 6: Final answer
    x = 86,513.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.