Home / 123,328.86-170,194.35-66,740.23

Finding the Fourth Proportional to 123,328.86, 170,194.35 and 66,740.23

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Solution

The fourth proportional to 123,328.86, 170,194.35 and 66,740.23 is: 92,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,328.86 : 170,194.35 = 66,740.23 : x
  2. Step 2: Convert to fraction form
    123,328.86/170,194.35 = 66,740.23/x
  3. Step 3: Cross multiply
    123,328.86x = 170,194.35 × 66,740.23
  4. Step 4: Simplify right side
    123,328.86x = 11,358,810,526.72
  5. Step 5: Solve for x
    x = 11,358,810,526.72/123,328.86
  6. Step 6: Final answer
    x = 92,101.81

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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.