Home / 137,392.11-189,628.74-93,900.78

Finding the Fourth Proportional to 137,392.11, 189,628.74 and 93,900.78

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Solution

The fourth proportional to 137,392.11, 189,628.74 and 93,900.78 is: 129,601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,392.11 : 189,628.74 = 93,900.78 : x
  2. Step 2: Convert to fraction form
    137,392.11/189,628.74 = 93,900.78/x
  3. Step 3: Cross multiply
    137,392.11x = 189,628.74 × 93,900.78
  4. Step 4: Simplify right side
    137,392.11x = 17,806,286,596.42
  5. Step 5: Solve for x
    x = 17,806,286,596.42/137,392.11
  6. Step 6: Final answer
    x = 129,601.96

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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.