Home / 142,969.62-214,235.73-76,419.21

Finding the Fourth Proportional to 142,969.62, 214,235.73 and 76,419.21

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Solution

The fourth proportional to 142,969.62, 214,235.73 and 76,419.21 is: 114,511.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,969.62 : 214,235.73 = 76,419.21 : x
  2. Step 2: Convert to fraction form
    142,969.62/214,235.73 = 76,419.21/x
  3. Step 3: Cross multiply
    142,969.62x = 214,235.73 × 76,419.21
  4. Step 4: Simplify right side
    142,969.62x = 16,371,725,240.37
  5. Step 5: Solve for x
    x = 16,371,725,240.37/142,969.62
  6. Step 6: Final answer
    x = 114,511.92

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1.5x scale

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.