Home / 109,942.60-164,913.90-70,576.60

Finding the Fourth Proportional to 109,942.60, 164,913.90 and 70,576.60

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Solution

The fourth proportional to 109,942.60, 164,913.90 and 70,576.60 is: 105,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,942.60 : 164,913.90 = 70,576.60 : x
  2. Step 2: Convert to fraction form
    109,942.60/164,913.90 = 70,576.60/x
  3. Step 3: Cross multiply
    109,942.60x = 164,913.90 × 70,576.60
  4. Step 4: Simplify right side
    109,942.60x = 11,639,062,354.74
  5. Step 5: Solve for x
    x = 11,639,062,354.74/109,942.60
  6. Step 6: Final answer
    x = 105,864.90

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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.