Home / 103,970.60-143,479.28-58,648.44

Finding the Fourth Proportional to 103,970.60, 143,479.28 and 58,648.44

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Solution

The fourth proportional to 103,970.60, 143,479.28 and 58,648.44 is: 80,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,970.60 : 143,479.28 = 58,648.44 : x
  2. Step 2: Convert to fraction form
    103,970.60/143,479.28 = 58,648.44/x
  3. Step 3: Cross multiply
    103,970.60x = 143,479.28 × 58,648.44
  4. Step 4: Simplify right side
    103,970.60x = 8,414,835,944.32
  5. Step 5: Solve for x
    x = 8,414,835,944.32/103,970.60
  6. Step 6: Final answer
    x = 80,934.76

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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.