Home / 134,928.88-186,192.24-74,489.76

Finding the Fourth Proportional to 134,928.88, 186,192.24 and 74,489.76

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Solution

The fourth proportional to 134,928.88, 186,192.24 and 74,489.76 is: 102,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,928.88 : 186,192.24 = 74,489.76 : x
  2. Step 2: Convert to fraction form
    134,928.88/186,192.24 = 74,489.76/x
  3. Step 3: Cross multiply
    134,928.88x = 186,192.24 × 74,489.76
  4. Step 4: Simplify right side
    134,928.88x = 13,869,415,271.46
  5. Step 5: Solve for x
    x = 13,869,415,271.46/134,928.88
  6. Step 6: Final answer
    x = 102,790.56

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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.