Home / 133,311.09-183,969.41-72,880.77

Finding the Fourth Proportional to 133,311.09, 183,969.41 and 72,880.77

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Solution

The fourth proportional to 133,311.09, 183,969.41 and 72,880.77 is: 100,575.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,311.09 : 183,969.41 = 72,880.77 : x
  2. Step 2: Convert to fraction form
    133,311.09/183,969.41 = 72,880.77/x
  3. Step 3: Cross multiply
    133,311.09x = 183,969.41 × 72,880.77
  4. Step 4: Simplify right side
    133,311.09x = 13,407,831,892.84
  5. Step 5: Solve for x
    x = 13,407,831,892.84/133,311.09
  6. Step 6: Final answer
    x = 100,575.52

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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.