Home / 125,865.06-173,694.21-72,153.30

Finding the Fourth Proportional to 125,865.06, 173,694.21 and 72,153.30

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Solution

The fourth proportional to 125,865.06, 173,694.21 and 72,153.30 is: 99,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,865.06 : 173,694.21 = 72,153.30 : x
  2. Step 2: Convert to fraction form
    125,865.06/173,694.21 = 72,153.30/x
  3. Step 3: Cross multiply
    125,865.06x = 173,694.21 × 72,153.30
  4. Step 4: Simplify right side
    125,865.06x = 12,532,610,442.39
  5. Step 5: Solve for x
    x = 12,532,610,442.39/125,865.06
  6. Step 6: Final answer
    x = 99,571.80

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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.