Home / 113,280.88-169,941.72-92,406

Finding the Fourth Proportional to 113,280.88, 169,941.72 and 92,406

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Solution

The fourth proportional to 113,280.88, 169,941.72 and 92,406 is: 138,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,280.88 : 169,941.72 = 92,406 : x
  2. Step 2: Convert to fraction form
    113,280.88/169,941.72 = 92,406/x
  3. Step 3: Cross multiply
    113,280.88x = 169,941.72 × 92,406
  4. Step 4: Simplify right side
    113,280.88x = 15,703,634,578.32
  5. Step 5: Solve for x
    x = 15,703,634,578.32/113,280.88
  6. Step 6: Final answer
    x = 138,625.64

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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.