Home / 134,887.28-186,145.09-74,456.82

Finding the Fourth Proportional to 134,887.28, 186,145.09 and 74,456.82

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Solution

The fourth proportional to 134,887.28, 186,145.09 and 74,456.82 is: 102,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,887.28 : 186,145.09 = 74,456.82 : x
  2. Step 2: Convert to fraction form
    134,887.28/186,145.09 = 74,456.82/x
  3. Step 3: Cross multiply
    134,887.28x = 186,145.09 × 74,456.82
  4. Step 4: Simplify right side
    134,887.28x = 13,859,771,273.87
  5. Step 5: Solve for x
    x = 13,859,771,273.87/134,887.28
  6. Step 6: Final answer
    x = 102,750.77

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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.