Home / 136,934.80-205,438.20-43,440.40

Finding the Fourth Proportional to 136,934.80, 205,438.20 and 43,440.40

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Solution

The fourth proportional to 136,934.80, 205,438.20 and 43,440.40 is: 65,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,934.80 : 205,438.20 = 43,440.40 : x
  2. Step 2: Convert to fraction form
    136,934.80/205,438.20 = 43,440.40/x
  3. Step 3: Cross multiply
    136,934.80x = 205,438.20 × 43,440.40
  4. Step 4: Simplify right side
    136,934.80x = 8,924,317,583.28
  5. Step 5: Solve for x
    x = 8,924,317,583.28/136,934.80
  6. Step 6: Final answer
    x = 65,172.02

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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.