Home / 102,949.26-142,063.40-57,619.62

Finding the Fourth Proportional to 102,949.26, 142,063.40 and 57,619.62

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Solution

The fourth proportional to 102,949.26, 142,063.40 and 57,619.62 is: 79,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,949.26 : 142,063.40 = 57,619.62 : x
  2. Step 2: Convert to fraction form
    102,949.26/142,063.40 = 57,619.62/x
  3. Step 3: Cross multiply
    102,949.26x = 142,063.40 × 57,619.62
  4. Step 4: Simplify right side
    102,949.26x = 8,185,638,835.81
  5. Step 5: Solve for x
    x = 8,185,638,835.81/102,949.26
  6. Step 6: Final answer
    x = 79,511.39

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1.5x scale

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.