Home / 103,865.68-155,776.64-37,309.60

Finding the Fourth Proportional to 103,865.68, 155,776.64 and 37,309.60

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Solution

The fourth proportional to 103,865.68, 155,776.64 and 37,309.60 is: 55,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,865.68 : 155,776.64 = 37,309.60 : x
  2. Step 2: Convert to fraction form
    103,865.68/155,776.64 = 37,309.60/x
  3. Step 3: Cross multiply
    103,865.68x = 155,776.64 × 37,309.60
  4. Step 4: Simplify right side
    103,865.68x = 5,811,964,127.74
  5. Step 5: Solve for x
    x = 5,811,964,127.74/103,865.68
  6. Step 6: Final answer
    x = 55,956.54

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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.