Home / 133,085.40-183,676.38-76,495.56

Finding the Fourth Proportional to 133,085.40, 183,676.38 and 76,495.56

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Solution

The fourth proportional to 133,085.40, 183,676.38 and 76,495.56 is: 105,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,085.40 : 183,676.38 = 76,495.56 : x
  2. Step 2: Convert to fraction form
    133,085.40/183,676.38 = 76,495.56/x
  3. Step 3: Cross multiply
    133,085.40x = 183,676.38 × 76,495.56
  4. Step 4: Simplify right side
    133,085.40x = 14,050,427,546.87
  5. Step 5: Solve for x
    x = 14,050,427,546.87/133,085.40
  6. Step 6: Final answer
    x = 105,574.52

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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.