Home / 136,933.80-205,436.70-43,439.40

Finding the Fourth Proportional to 136,933.80, 205,436.70 and 43,439.40

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Solution

The fourth proportional to 136,933.80, 205,436.70 and 43,439.40 is: 65,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,933.80 : 205,436.70 = 43,439.40 : x
  2. Step 2: Convert to fraction form
    136,933.80/205,436.70 = 43,439.40/x
  3. Step 3: Cross multiply
    136,933.80x = 205,436.70 × 43,439.40
  4. Step 4: Simplify right side
    136,933.80x = 8,924,046,985.98
  5. Step 5: Solve for x
    x = 8,924,046,985.98/136,933.80
  6. Step 6: Final answer
    x = 65,170.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.