Home / 129,841.40-179,262.18-99,568.46

Finding the Fourth Proportional to 129,841.40, 179,262.18 and 99,568.46

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Solution

The fourth proportional to 129,841.40, 179,262.18 and 99,568.46 is: 137,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,841.40 : 179,262.18 = 99,568.46 : x
  2. Step 2: Convert to fraction form
    129,841.40/179,262.18 = 99,568.46/x
  3. Step 3: Cross multiply
    129,841.40x = 179,262.18 × 99,568.46
  4. Step 4: Simplify right side
    129,841.40x = 17,848,859,647.00
  5. Step 5: Solve for x
    x = 17,848,859,647.00/129,841.40
  6. Step 6: Final answer
    x = 137,466.63

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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.