Home / 133,197.20-183,824.80-72,776.91

Finding the Fourth Proportional to 133,197.20, 183,824.80 and 72,776.91

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Solution

The fourth proportional to 133,197.20, 183,824.80 and 72,776.91 is: 100,439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,197.20 : 183,824.80 = 72,776.91 : x
  2. Step 2: Convert to fraction form
    133,197.20/183,824.80 = 72,776.91/x
  3. Step 3: Cross multiply
    133,197.20x = 183,824.80 × 72,776.91
  4. Step 4: Simplify right side
    133,197.20x = 13,378,201,432.77
  5. Step 5: Solve for x
    x = 13,378,201,432.77/133,197.20
  6. Step 6: Final answer
    x = 100,439.06

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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.