Home / 125,511.12-173,006.28-123,022.80

Finding the Fourth Proportional to 125,511.12, 173,006.28 and 123,022.80

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Solution

The fourth proportional to 125,511.12, 173,006.28 and 123,022.80 is: 169,576.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,511.12 : 173,006.28 = 123,022.80 : x
  2. Step 2: Convert to fraction form
    125,511.12/173,006.28 = 123,022.80/x
  3. Step 3: Cross multiply
    125,511.12x = 173,006.28 × 123,022.80
  4. Step 4: Simplify right side
    125,511.12x = 21,283,716,983.18
  5. Step 5: Solve for x
    x = 21,283,716,983.18/125,511.12
  6. Step 6: Final answer
    x = 169,576.34

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1.5x scale

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.