Home / 68,191.14-102,302.19-20,810.46

Finding the Fourth Proportional to 68,191.14, 102,302.19 and 20,810.46

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Solution

The fourth proportional to 68,191.14, 102,302.19 and 20,810.46 is: 31,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,191.14 : 102,302.19 = 20,810.46 : x
  2. Step 2: Convert to fraction form
    68,191.14/102,302.19 = 20,810.46/x
  3. Step 3: Cross multiply
    68,191.14x = 102,302.19 × 20,810.46
  4. Step 4: Simplify right side
    68,191.14x = 2,128,955,632.91
  5. Step 5: Solve for x
    x = 2,128,955,632.91/68,191.14
  6. Step 6: Final answer
    x = 31,220.41

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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.