Home / 143,439.46-214,962.36-90,754.63

Finding the Fourth Proportional to 143,439.46, 214,962.36 and 90,754.63

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Solution

The fourth proportional to 143,439.46, 214,962.36 and 90,754.63 is: 136,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,439.46 : 214,962.36 = 90,754.63 : x
  2. Step 2: Convert to fraction form
    143,439.46/214,962.36 = 90,754.63/x
  3. Step 3: Cross multiply
    143,439.46x = 214,962.36 × 90,754.63
  4. Step 4: Simplify right side
    143,439.46x = 19,508,828,567.99
  5. Step 5: Solve for x
    x = 19,508,828,567.99/143,439.46
  6. Step 6: Final answer
    x = 136,007.41

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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.