Home / 124,709.09-172,102.77-68,124.11

Finding the Fourth Proportional to 124,709.09, 172,102.77 and 68,124.11

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Solution

The fourth proportional to 124,709.09, 172,102.77 and 68,124.11 is: 94,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,709.09 : 172,102.77 = 68,124.11 : x
  2. Step 2: Convert to fraction form
    124,709.09/172,102.77 = 68,124.11/x
  3. Step 3: Cross multiply
    124,709.09x = 172,102.77 × 68,124.11
  4. Step 4: Simplify right side
    124,709.09x = 11,724,347,174.27
  5. Step 5: Solve for x
    x = 11,724,347,174.27/124,709.09
  6. Step 6: Final answer
    x = 94,013.58

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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.