Home / 154,636.20-231,608.70-119,298.60

Finding the Fourth Proportional to 154,636.20, 231,608.70 and 119,298.60

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Solution

The fourth proportional to 154,636.20, 231,608.70 and 119,298.60 is: 178,681.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,636.20 : 231,608.70 = 119,298.60 : x
  2. Step 2: Convert to fraction form
    154,636.20/231,608.70 = 119,298.60/x
  3. Step 3: Cross multiply
    154,636.20x = 231,608.70 × 119,298.60
  4. Step 4: Simplify right side
    154,636.20x = 27,630,593,657.82
  5. Step 5: Solve for x
    x = 27,630,593,657.82/154,636.20
  6. Step 6: Final answer
    x = 178,681.28

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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.