Home / 129,788.96-179,092.50-76,061.68

Finding the Fourth Proportional to 129,788.96, 179,092.50 and 76,061.68

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Solution

The fourth proportional to 129,788.96, 179,092.50 and 76,061.68 is: 104,955.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,788.96 : 179,092.50 = 76,061.68 : x
  2. Step 2: Convert to fraction form
    129,788.96/179,092.50 = 76,061.68/x
  3. Step 3: Cross multiply
    129,788.96x = 179,092.50 × 76,061.68
  4. Step 4: Simplify right side
    129,788.96x = 13,622,076,425.40
  5. Step 5: Solve for x
    x = 13,622,076,425.40/129,788.96
  6. Step 6: Final answer
    x = 104,955.59

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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.