Home / 123,328.49-170,193.54-66,739.88

Finding the Fourth Proportional to 123,328.49, 170,193.54 and 66,739.88

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Solution

The fourth proportional to 123,328.49, 170,193.54 and 66,739.88 is: 92,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,328.49 : 170,193.54 = 66,739.88 : x
  2. Step 2: Convert to fraction form
    123,328.49/170,193.54 = 66,739.88/x
  3. Step 3: Cross multiply
    123,328.49x = 170,193.54 × 66,739.88
  4. Step 4: Simplify right side
    123,328.49x = 11,358,696,436.38
  5. Step 5: Solve for x
    x = 11,358,696,436.38/123,328.49
  6. Step 6: Final answer
    x = 92,101.16

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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.