Home / 125,515.18-173,211.24-68,930.20

Finding the Fourth Proportional to 125,515.18, 173,211.24 and 68,930.20

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Solution

The fourth proportional to 125,515.18, 173,211.24 and 68,930.20 is: 95,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,515.18 : 173,211.24 = 68,930.20 : x
  2. Step 2: Convert to fraction form
    125,515.18/173,211.24 = 68,930.20/x
  3. Step 3: Cross multiply
    125,515.18x = 173,211.24 × 68,930.20
  4. Step 4: Simplify right side
    125,515.18x = 11,939,485,415.45
  5. Step 5: Solve for x
    x = 11,939,485,415.45/125,515.18
  6. Step 6: Final answer
    x = 95,123.84

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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.