Home / 133,239.54-183,868.34-72,808.94

Finding the Fourth Proportional to 133,239.54, 183,868.34 and 72,808.94

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Solution

The fourth proportional to 133,239.54, 183,868.34 and 72,808.94 is: 100,475.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,239.54 : 183,868.34 = 72,808.94 : x
  2. Step 2: Convert to fraction form
    133,239.54/183,868.34 = 72,808.94/x
  3. Step 3: Cross multiply
    133,239.54x = 183,868.34 × 72,808.94
  4. Step 4: Simplify right side
    133,239.54x = 13,387,258,934.96
  5. Step 5: Solve for x
    x = 13,387,258,934.96/133,239.54
  6. Step 6: Final answer
    x = 100,475.12

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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.