Home / 133,270.90-183,908.81-72,841.05

Finding the Fourth Proportional to 133,270.90, 183,908.81 and 72,841.05

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Solution

The fourth proportional to 133,270.90, 183,908.81 and 72,841.05 is: 100,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,270.90 : 183,908.81 = 72,841.05 : x
  2. Step 2: Convert to fraction form
    133,270.90/183,908.81 = 72,841.05/x
  3. Step 3: Cross multiply
    133,270.90x = 183,908.81 × 72,841.05
  4. Step 4: Simplify right side
    133,270.90x = 13,396,111,006.75
  5. Step 5: Solve for x
    x = 13,396,111,006.75/133,270.90
  6. Step 6: Final answer
    x = 100,517.90

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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.