Home / 133,030.12-183,578.82-72,601.96

Finding the Fourth Proportional to 133,030.12, 183,578.82 and 72,601.96

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Solution

The fourth proportional to 133,030.12, 183,578.82 and 72,601.96 is: 100,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030.12 : 183,578.82 = 72,601.96 : x
  2. Step 2: Convert to fraction form
    133,030.12/183,578.82 = 72,601.96/x
  3. Step 3: Cross multiply
    133,030.12x = 183,578.82 × 72,601.96
  4. Step 4: Simplify right side
    133,030.12x = 13,328,182,146.49
  5. Step 5: Solve for x
    x = 13,328,182,146.49/133,030.12
  6. Step 6: Final answer
    x = 100,189.21

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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.