Home / 125,711.34-173,518.41-74,759.91

Finding the Fourth Proportional to 125,711.34, 173,518.41 and 74,759.91

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Solution

The fourth proportional to 125,711.34, 173,518.41 and 74,759.91 is: 103,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,711.34 : 173,518.41 = 74,759.91 : x
  2. Step 2: Convert to fraction form
    125,711.34/173,518.41 = 74,759.91/x
  3. Step 3: Cross multiply
    125,711.34x = 173,518.41 × 74,759.91
  4. Step 4: Simplify right side
    125,711.34x = 12,972,220,714.94
  5. Step 5: Solve for x
    x = 12,972,220,714.94/125,711.34
  6. Step 6: Final answer
    x = 103,190.54

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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.