Home / 123,899.42-170,980.26-67,311.20

Finding the Fourth Proportional to 123,899.42, 170,980.26 and 67,311.20

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Solution

The fourth proportional to 123,899.42, 170,980.26 and 67,311.20 is: 92,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,899.42 : 170,980.26 = 67,311.20 : x
  2. Step 2: Convert to fraction form
    123,899.42/170,980.26 = 67,311.20/x
  3. Step 3: Cross multiply
    123,899.42x = 170,980.26 × 67,311.20
  4. Step 4: Simplify right side
    123,899.42x = 11,508,886,476.91
  5. Step 5: Solve for x
    x = 11,508,886,476.91/123,899.42
  6. Step 6: Final answer
    x = 92,888.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.