Home / 133,228.48-183,768.24-85,406.08

Finding the Fourth Proportional to 133,228.48, 183,768.24 and 85,406.08

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Solution

The fourth proportional to 133,228.48, 183,768.24 and 85,406.08 is: 117,804.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,228.48 : 183,768.24 = 85,406.08 : x
  2. Step 2: Convert to fraction form
    133,228.48/183,768.24 = 85,406.08/x
  3. Step 3: Cross multiply
    133,228.48x = 183,768.24 × 85,406.08
  4. Step 4: Simplify right side
    133,228.48x = 15,694,925,006.90
  5. Step 5: Solve for x
    x = 15,694,925,006.90/133,228.48
  6. Step 6: Final answer
    x = 117,804.58

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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.