Home / 208,350.90-312,526.35-68,123.70

Finding the Fourth Proportional to 208,350.90, 312,526.35 and 68,123.70

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Solution

The fourth proportional to 208,350.90, 312,526.35 and 68,123.70 is: 102,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,350.90 : 312,526.35 = 68,123.70 : x
  2. Step 2: Convert to fraction form
    208,350.90/312,526.35 = 68,123.70/x
  3. Step 3: Cross multiply
    208,350.90x = 312,526.35 × 68,123.70
  4. Step 4: Simplify right side
    208,350.90x = 21,290,451,309.50
  5. Step 5: Solve for x
    x = 21,290,451,309.50/208,350.90
  6. Step 6: Final answer
    x = 102,185.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.