Home / 123,776.43-170,810.37-67,187.76

Finding the Fourth Proportional to 123,776.43, 170,810.37 and 67,187.76

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Solution

The fourth proportional to 123,776.43, 170,810.37 and 67,187.76 is: 92,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,776.43 : 170,810.37 = 67,187.76 : x
  2. Step 2: Convert to fraction form
    123,776.43/170,810.37 = 67,187.76/x
  3. Step 3: Cross multiply
    123,776.43x = 170,810.37 × 67,187.76
  4. Step 4: Simplify right side
    123,776.43x = 11,476,366,145.07
  5. Step 5: Solve for x
    x = 11,476,366,145.07/123,776.43
  6. Step 6: Final answer
    x = 92,718.51

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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.