Home / 120,829.84-166,732.76-70,558

Finding the Fourth Proportional to 120,829.84, 166,732.76 and 70,558

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Solution

The fourth proportional to 120,829.84, 166,732.76 and 70,558 is: 97,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,829.84 : 166,732.76 = 70,558 : x
  2. Step 2: Convert to fraction form
    120,829.84/166,732.76 = 70,558/x
  3. Step 3: Cross multiply
    120,829.84x = 166,732.76 × 70,558
  4. Step 4: Simplify right side
    120,829.84x = 11,764,330,080.08
  5. Step 5: Solve for x
    x = 11,764,330,080.08/120,829.84
  6. Step 6: Final answer
    x = 97,362.79

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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.