Home / 105,573.22-145,690.82-57,175.00

Finding the Fourth Proportional to 105,573.22, 145,690.82 and 57,175.00

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Solution

The fourth proportional to 105,573.22, 145,690.82 and 57,175.00 is: 78,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,573.22 : 145,690.82 = 57,175.00 : x
  2. Step 2: Convert to fraction form
    105,573.22/145,690.82 = 57,175.00/x
  3. Step 3: Cross multiply
    105,573.22x = 145,690.82 × 57,175.00
  4. Step 4: Simplify right side
    105,573.22x = 8,329,871,905.05
  5. Step 5: Solve for x
    x = 8,329,871,905.05/105,573.22
  6. Step 6: Final answer
    x = 78,901.37

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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.