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Finding the Fourth Proportional to 154,762.55, 213,481.58 and 97,310.79

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Solution

The fourth proportional to 154,762.55, 213,481.58 and 97,310.79 is: 134,231.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,762.55 : 213,481.58 = 97,310.79 : x
  2. Step 2: Convert to fraction form
    154,762.55/213,481.58 = 97,310.79/x
  3. Step 3: Cross multiply
    154,762.55x = 213,481.58 × 97,310.79
  4. Step 4: Simplify right side
    154,762.55x = 20,774,060,713.69
  5. Step 5: Solve for x
    x = 20,774,060,713.69/154,762.55
  6. Step 6: Final answer
    x = 134,231.84

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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.