Home / 143,282.52-197,748.06-86,694.36

Finding the Fourth Proportional to 143,282.52, 197,748.06 and 86,694.36

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Solution

The fourth proportional to 143,282.52, 197,748.06 and 86,694.36 is: 119,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,282.52 : 197,748.06 = 86,694.36 : x
  2. Step 2: Convert to fraction form
    143,282.52/197,748.06 = 86,694.36/x
  3. Step 3: Cross multiply
    143,282.52x = 197,748.06 × 86,694.36
  4. Step 4: Simplify right side
    143,282.52x = 17,143,641,502.94
  5. Step 5: Solve for x
    x = 17,143,641,502.94/143,282.52
  6. Step 6: Final answer
    x = 119,649.22

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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.