Home / 142,321.30-213,516.99-100,283.49

Finding the Fourth Proportional to 142,321.30, 213,516.99 and 100,283.49

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Solution

The fourth proportional to 142,321.30, 213,516.99 and 100,283.49 is: 150,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,321.30 : 213,516.99 = 100,283.49 : x
  2. Step 2: Convert to fraction form
    142,321.30/213,516.99 = 100,283.49/x
  3. Step 3: Cross multiply
    142,321.30x = 213,516.99 × 100,283.49
  4. Step 4: Simplify right side
    142,321.30x = 21,412,228,931.50
  5. Step 5: Solve for x
    x = 21,412,228,931.50/142,321.30
  6. Step 6: Final answer
    x = 150,449.93

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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.