Home / 123,715.54-170,729.43-67,126.91

Finding the Fourth Proportional to 123,715.54, 170,729.43 and 67,126.91

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Solution

The fourth proportional to 123,715.54, 170,729.43 and 67,126.91 is: 92,636.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,715.54 : 170,729.43 = 67,126.91 : x
  2. Step 2: Convert to fraction form
    123,715.54/170,729.43 = 67,126.91/x
  3. Step 3: Cross multiply
    123,715.54x = 170,729.43 × 67,126.91
  4. Step 4: Simplify right side
    123,715.54x = 11,460,539,257.06
  5. Step 5: Solve for x
    x = 11,460,539,257.06/123,715.54
  6. Step 6: Final answer
    x = 92,636.22

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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.