Home / 137,275.50-189,438.73-76,846.64

Finding the Fourth Proportional to 137,275.50, 189,438.73 and 76,846.64

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Solution

The fourth proportional to 137,275.50, 189,438.73 and 76,846.64 is: 106,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,275.50 : 189,438.73 = 76,846.64 : x
  2. Step 2: Convert to fraction form
    137,275.50/189,438.73 = 76,846.64/x
  3. Step 3: Cross multiply
    137,275.50x = 189,438.73 × 76,846.64
  4. Step 4: Simplify right side
    137,275.50x = 14,557,729,886.37
  5. Step 5: Solve for x
    x = 14,557,729,886.37/137,275.50
  6. Step 6: Final answer
    x = 106,047.55

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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.