Home / 119,531.94-164,952.75-65,815.57

Finding the Fourth Proportional to 119,531.94, 164,952.75 and 65,815.57

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Solution

The fourth proportional to 119,531.94, 164,952.75 and 65,815.57 is: 90,824.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,531.94 : 164,952.75 = 65,815.57 : x
  2. Step 2: Convert to fraction form
    119,531.94/164,952.75 = 65,815.57/x
  3. Step 3: Cross multiply
    119,531.94x = 164,952.75 × 65,815.57
  4. Step 4: Simplify right side
    119,531.94x = 10,856,459,264.32
  5. Step 5: Solve for x
    x = 10,856,459,264.32/119,531.94
  6. Step 6: Final answer
    x = 90,824.76

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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.