Home / 103,475.28-155,321.50-91,704.36

Finding the Fourth Proportional to 103,475.28, 155,321.50 and 91,704.36

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Solution

The fourth proportional to 103,475.28, 155,321.50 and 91,704.36 is: 137,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,475.28 : 155,321.50 = 91,704.36 : x
  2. Step 2: Convert to fraction form
    103,475.28/155,321.50 = 91,704.36/x
  3. Step 3: Cross multiply
    103,475.28x = 155,321.50 × 91,704.36
  4. Step 4: Simplify right side
    103,475.28x = 14,243,658,204.39
  5. Step 5: Solve for x
    x = 14,243,658,204.39/103,475.28
  6. Step 6: Final answer
    x = 137,652.77

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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.