Home / 210,087.55-315,062.74-67,899.42

Finding the Fourth Proportional to 210,087.55, 315,062.74 and 67,899.42

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Solution

The fourth proportional to 210,087.55, 315,062.74 and 67,899.42 is: 101,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,087.55 : 315,062.74 = 67,899.42 : x
  2. Step 2: Convert to fraction form
    210,087.55/315,062.74 = 67,899.42/x
  3. Step 3: Cross multiply
    210,087.55x = 315,062.74 × 67,899.42
  4. Step 4: Simplify right side
    210,087.55x = 21,392,577,309.61
  5. Step 5: Solve for x
    x = 21,392,577,309.61/210,087.55
  6. Step 6: Final answer
    x = 101,826.96

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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.