Home / 124,190.96-171,291.11-78,829.54

Finding the Fourth Proportional to 124,190.96, 171,291.11 and 78,829.54

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Solution

The fourth proportional to 124,190.96, 171,291.11 and 78,829.54 is: 108,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,190.96 : 171,291.11 = 78,829.54 : x
  2. Step 2: Convert to fraction form
    124,190.96/171,291.11 = 78,829.54/x
  3. Step 3: Cross multiply
    124,190.96x = 171,291.11 × 78,829.54
  4. Step 4: Simplify right side
    124,190.96x = 13,502,798,585.01
  5. Step 5: Solve for x
    x = 13,502,798,585.01/124,190.96
  6. Step 6: Final answer
    x = 108,726.10

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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.