Home / 68,156.37-102,250.76-21,409.25

Finding the Fourth Proportional to 68,156.37, 102,250.76 and 21,409.25

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Solution

The fourth proportional to 68,156.37, 102,250.76 and 21,409.25 is: 32,118.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,156.37 : 102,250.76 = 21,409.25 : x
  2. Step 2: Convert to fraction form
    68,156.37/102,250.76 = 21,409.25/x
  3. Step 3: Cross multiply
    68,156.37x = 102,250.76 × 21,409.25
  4. Step 4: Simplify right side
    68,156.37x = 2,189,111,465.23
  5. Step 5: Solve for x
    x = 2,189,111,465.23/68,156.37
  6. Step 6: Final answer
    x = 32,118.96

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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.