Home / 104,865.32-144,713.40-57,118.52

Finding the Fourth Proportional to 104,865.32, 144,713.40 and 57,118.52

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Solution

The fourth proportional to 104,865.32, 144,713.40 and 57,118.52 is: 78,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,865.32 : 144,713.40 = 57,118.52 : x
  2. Step 2: Convert to fraction form
    104,865.32/144,713.40 = 57,118.52/x
  3. Step 3: Cross multiply
    104,865.32x = 144,713.40 × 57,118.52
  4. Step 4: Simplify right side
    104,865.32x = 8,265,815,232.17
  5. Step 5: Solve for x
    x = 8,265,815,232.17/104,865.32
  6. Step 6: Final answer
    x = 78,823.15

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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.