Home / 92,165.12-138,437.76-60,673.28

Finding the Fourth Proportional to 92,165.12, 138,437.76 and 60,673.28

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Solution

The fourth proportional to 92,165.12, 138,437.76 and 60,673.28 is: 91,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,165.12 : 138,437.76 = 60,673.28 : x
  2. Step 2: Convert to fraction form
    92,165.12/138,437.76 = 60,673.28/x
  3. Step 3: Cross multiply
    92,165.12x = 138,437.76 × 60,673.28
  4. Step 4: Simplify right side
    92,165.12x = 8,399,472,975.05
  5. Step 5: Solve for x
    x = 8,399,472,975.05/92,165.12
  6. Step 6: Final answer
    x = 91,135.05

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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.