Home / 134,156.31-185,113.94-77,556.75

Finding the Fourth Proportional to 134,156.31, 185,113.94 and 77,556.75

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Solution

The fourth proportional to 134,156.31, 185,113.94 and 77,556.75 is: 107,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,156.31 : 185,113.94 = 77,556.75 : x
  2. Step 2: Convert to fraction form
    134,156.31/185,113.94 = 77,556.75/x
  3. Step 3: Cross multiply
    134,156.31x = 185,113.94 × 77,556.75
  4. Step 4: Simplify right side
    134,156.31x = 14,356,835,178.31
  5. Step 5: Solve for x
    x = 14,356,835,178.31/134,156.31
  6. Step 6: Final answer
    x = 107,015.73

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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.