Home / 135,954.24-187,707.24-85,043.76

Finding the Fourth Proportional to 135,954.24, 187,707.24 and 85,043.76

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Solution

The fourth proportional to 135,954.24, 187,707.24 and 85,043.76 is: 117,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,954.24 : 187,707.24 = 85,043.76 : x
  2. Step 2: Convert to fraction form
    135,954.24/187,707.24 = 85,043.76/x
  3. Step 3: Cross multiply
    135,954.24x = 187,707.24 × 85,043.76
  4. Step 4: Simplify right side
    135,954.24x = 15,963,329,468.82
  5. Step 5: Solve for x
    x = 15,963,329,468.82/135,954.24
  6. Step 6: Final answer
    x = 117,416.93

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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.