Home / 210,080.84-315,162.23-67,961.34

Finding the Fourth Proportional to 210,080.84, 315,162.23 and 67,961.34

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Solution

The fourth proportional to 210,080.84, 315,162.23 and 67,961.34 is: 101,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,080.84 : 315,162.23 = 67,961.34 : x
  2. Step 2: Convert to fraction form
    210,080.84/315,162.23 = 67,961.34/x
  3. Step 3: Cross multiply
    210,080.84x = 315,162.23 × 67,961.34
  4. Step 4: Simplify right side
    210,080.84x = 21,418,847,128.38
  5. Step 5: Solve for x
    x = 21,418,847,128.38/210,080.84
  6. Step 6: Final answer
    x = 101,955.26

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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.