Home / 133,258.14-183,890.70-78,845.58

Finding the Fourth Proportional to 133,258.14, 183,890.70 and 78,845.58

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Solution

The fourth proportional to 133,258.14, 183,890.70 and 78,845.58 is: 108,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,258.14 : 183,890.70 = 78,845.58 : x
  2. Step 2: Convert to fraction form
    133,258.14/183,890.70 = 78,845.58/x
  3. Step 3: Cross multiply
    133,258.14x = 183,890.70 × 78,845.58
  4. Step 4: Simplify right side
    133,258.14x = 14,498,968,898.11
  5. Step 5: Solve for x
    x = 14,498,968,898.11/133,258.14
  6. Step 6: Final answer
    x = 108,803.63

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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.