Home / 137,264.40-189,415.68-76,824.72

Finding the Fourth Proportional to 137,264.40, 189,415.68 and 76,824.72

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Solution

The fourth proportional to 137,264.40, 189,415.68 and 76,824.72 is: 106,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,264.40 : 189,415.68 = 76,824.72 : x
  2. Step 2: Convert to fraction form
    137,264.40/189,415.68 = 76,824.72/x
  3. Step 3: Cross multiply
    137,264.40x = 189,415.68 × 76,824.72
  4. Step 4: Simplify right side
    137,264.40x = 14,551,806,579.61
  5. Step 5: Solve for x
    x = 14,551,806,579.61/137,264.40
  6. Step 6: Final answer
    x = 106,012.97

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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.