Home / 106,381.62-145,742.22-102,393.18

Finding the Fourth Proportional to 106,381.62, 145,742.22 and 102,393.18

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Solution

The fourth proportional to 106,381.62, 145,742.22 and 102,393.18 is: 140,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,381.62 : 145,742.22 = 102,393.18 : x
  2. Step 2: Convert to fraction form
    106,381.62/145,742.22 = 102,393.18/x
  3. Step 3: Cross multiply
    106,381.62x = 145,742.22 × 102,393.18
  4. Step 4: Simplify right side
    106,381.62x = 14,923,009,366.06
  5. Step 5: Solve for x
    x = 14,923,009,366.06/106,381.62
  6. Step 6: Final answer
    x = 140,278.08

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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.