Home / 103,310.38-154,782.15-43,206.40

Finding the Fourth Proportional to 103,310.38, 154,782.15 and 43,206.40

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Solution

The fourth proportional to 103,310.38, 154,782.15 and 43,206.40 is: 64,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,310.38 : 154,782.15 = 43,206.40 : x
  2. Step 2: Convert to fraction form
    103,310.38/154,782.15 = 43,206.40/x
  3. Step 3: Cross multiply
    103,310.38x = 154,782.15 × 43,206.40
  4. Step 4: Simplify right side
    103,310.38x = 6,687,579,485.76
  5. Step 5: Solve for x
    x = 6,687,579,485.76/103,310.38
  6. Step 6: Final answer
    x = 64,732.89

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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.