Home / 123,336.12-170,203.85-66,747.50

Finding the Fourth Proportional to 123,336.12, 170,203.85 and 66,747.50

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Solution

The fourth proportional to 123,336.12, 170,203.85 and 66,747.50 is: 92,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,336.12 : 170,203.85 = 66,747.50 : x
  2. Step 2: Convert to fraction form
    123,336.12/170,203.85 = 66,747.50/x
  3. Step 3: Cross multiply
    123,336.12x = 170,203.85 × 66,747.50
  4. Step 4: Simplify right side
    123,336.12x = 11,360,681,477.88
  5. Step 5: Solve for x
    x = 11,360,681,477.88/123,336.12
  6. Step 6: Final answer
    x = 92,111.55

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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.