Home / 124,174.08-171,560.64-86,616

Finding the Fourth Proportional to 124,174.08, 171,560.64 and 86,616

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Solution

The fourth proportional to 124,174.08, 171,560.64 and 86,616 is: 119,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,174.08 : 171,560.64 = 86,616 : x
  2. Step 2: Convert to fraction form
    124,174.08/171,560.64 = 86,616/x
  3. Step 3: Cross multiply
    124,174.08x = 171,560.64 × 86,616
  4. Step 4: Simplify right side
    124,174.08x = 14,859,896,394.24
  5. Step 5: Solve for x
    x = 14,859,896,394.24/124,174.08
  6. Step 6: Final answer
    x = 119,669.87

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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.