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Finding the Fourth Proportional to 129,950.48, 179,333.14 and 76,236.42

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Solution

The fourth proportional to 129,950.48, 179,333.14 and 76,236.42 is: 105,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.48 : 179,333.14 = 76,236.42 : x
  2. Step 2: Convert to fraction form
    129,950.48/179,333.14 = 76,236.42/x
  3. Step 3: Cross multiply
    129,950.48x = 179,333.14 × 76,236.42
  4. Step 4: Simplify right side
    129,950.48x = 13,671,716,580.96
  5. Step 5: Solve for x
    x = 13,671,716,580.96/129,950.48
  6. Step 6: Final answer
    x = 105,207.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.