Home / 123,638.08-170,619.06-67,048.78

Finding the Fourth Proportional to 123,638.08, 170,619.06 and 67,048.78

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Solution

The fourth proportional to 123,638.08, 170,619.06 and 67,048.78 is: 92,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,638.08 : 170,619.06 = 67,048.78 : x
  2. Step 2: Convert to fraction form
    123,638.08/170,619.06 = 67,048.78/x
  3. Step 3: Cross multiply
    123,638.08x = 170,619.06 × 67,048.78
  4. Step 4: Simplify right side
    123,638.08x = 11,439,799,817.75
  5. Step 5: Solve for x
    x = 11,439,799,817.75/123,638.08
  6. Step 6: Final answer
    x = 92,526.51

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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.