Home / 210,065.85-315,139.74-67,946.34

Finding the Fourth Proportional to 210,065.85, 315,139.74 and 67,946.34

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Solution

The fourth proportional to 210,065.85, 315,139.74 and 67,946.34 is: 101,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,065.85 : 315,139.74 = 67,946.34 : x
  2. Step 2: Convert to fraction form
    210,065.85/315,139.74 = 67,946.34/x
  3. Step 3: Cross multiply
    210,065.85x = 315,139.74 × 67,946.34
  4. Step 4: Simplify right side
    210,065.85x = 21,412,591,921.55
  5. Step 5: Solve for x
    x = 21,412,591,921.55/210,065.85
  6. Step 6: Final answer
    x = 101,932.76

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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.