Home / 143,177.49-197,582.09-79,513.11

Finding the Fourth Proportional to 143,177.49, 197,582.09 and 79,513.11

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Solution

The fourth proportional to 143,177.49, 197,582.09 and 79,513.11 is: 109,726.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,177.49 : 197,582.09 = 79,513.11 : x
  2. Step 2: Convert to fraction form
    143,177.49/197,582.09 = 79,513.11/x
  3. Step 3: Cross multiply
    143,177.49x = 197,582.09 × 79,513.11
  4. Step 4: Simplify right side
    143,177.49x = 15,710,366,058.63
  5. Step 5: Solve for x
    x = 15,710,366,058.63/143,177.49
  6. Step 6: Final answer
    x = 109,726.51

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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.