Home / 142,320.30-213,515.49-100,282.49

Finding the Fourth Proportional to 142,320.30, 213,515.49 and 100,282.49

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Solution

The fourth proportional to 142,320.30, 213,515.49 and 100,282.49 is: 150,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.30 : 213,515.49 = 100,282.49 : x
  2. Step 2: Convert to fraction form
    142,320.30/213,515.49 = 100,282.49/x
  3. Step 3: Cross multiply
    142,320.30x = 213,515.49 × 100,282.49
  4. Step 4: Simplify right side
    142,320.30x = 21,411,864,990.77
  5. Step 5: Solve for x
    x = 21,411,864,990.77/142,320.30
  6. Step 6: Final answer
    x = 150,448.43

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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.