Home / 133,218.45-183,841.95-72,790.41

Finding the Fourth Proportional to 133,218.45, 183,841.95 and 72,790.41

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Solution

The fourth proportional to 133,218.45, 183,841.95 and 72,790.41 is: 100,451.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218.45 : 183,841.95 = 72,790.41 : x
  2. Step 2: Convert to fraction form
    133,218.45/183,841.95 = 72,790.41/x
  3. Step 3: Cross multiply
    133,218.45x = 183,841.95 × 72,790.41
  4. Step 4: Simplify right side
    133,218.45x = 13,381,930,915.70
  5. Step 5: Solve for x
    x = 13,381,930,915.70/133,218.45
  6. Step 6: Final answer
    x = 100,451.03

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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.