Home / 125,515-173,211.92-68,927.59

Finding the Fourth Proportional to 125,515, 173,211.92 and 68,927.59

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Solution

The fourth proportional to 125,515, 173,211.92 and 68,927.59 is: 95,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,515 : 173,211.92 = 68,927.59 : x
  2. Step 2: Convert to fraction form
    125,515/173,211.92 = 68,927.59/x
  3. Step 3: Cross multiply
    125,515x = 173,211.92 × 68,927.59
  4. Step 4: Simplify right side
    125,515x = 11,939,079,860.23
  5. Step 5: Solve for x
    x = 11,939,079,860.23/125,515
  6. Step 6: Final answer
    x = 95,120.74

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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.