Home / 106,393.62-145,758.66-102,405.18

Finding the Fourth Proportional to 106,393.62, 145,758.66 and 102,405.18

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Solution

The fourth proportional to 106,393.62, 145,758.66 and 102,405.18 is: 140,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,393.62 : 145,758.66 = 102,405.18 : x
  2. Step 2: Convert to fraction form
    106,393.62/145,758.66 = 102,405.18/x
  3. Step 3: Cross multiply
    106,393.62x = 145,758.66 × 102,405.18
  4. Step 4: Simplify right side
    106,393.62x = 14,926,441,813.86
  5. Step 5: Solve for x
    x = 14,926,441,813.86/106,393.62
  6. Step 6: Final answer
    x = 140,294.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.