Home / 133,091.20-183,696.72-87,777.28

Finding the Fourth Proportional to 133,091.20, 183,696.72 and 87,777.28

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Solution

The fourth proportional to 133,091.20, 183,696.72 and 87,777.28 is: 121,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,091.20 : 183,696.72 = 87,777.28 : x
  2. Step 2: Convert to fraction form
    133,091.20/183,696.72 = 87,777.28/x
  3. Step 3: Cross multiply
    133,091.20x = 183,696.72 × 87,777.28
  4. Step 4: Simplify right side
    133,091.20x = 16,124,398,426.52
  5. Step 5: Solve for x
    x = 16,124,398,426.52/133,091.20
  6. Step 6: Final answer
    x = 121,153.00

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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.