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Finding the Fourth Proportional to 146,372.45, 201,993.98 and 79,304.45

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Solution

The fourth proportional to 146,372.45, 201,993.98 and 79,304.45 is: 109,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,372.45 : 201,993.98 = 79,304.45 : x
  2. Step 2: Convert to fraction form
    146,372.45/201,993.98 = 79,304.45/x
  3. Step 3: Cross multiply
    146,372.45x = 201,993.98 × 79,304.45
  4. Step 4: Simplify right side
    146,372.45x = 16,019,020,080.72
  5. Step 5: Solve for x
    x = 16,019,020,080.72/146,372.45
  6. Step 6: Final answer
    x = 109,440.13

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1.5x scale

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.