Home / 85,668.06-127,888.92-74,461.04

Finding the Fourth Proportional to 85,668.06, 127,888.92 and 74,461.04

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Solution

The fourth proportional to 85,668.06, 127,888.92 and 74,461.04 is: 111,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,668.06 : 127,888.92 = 74,461.04 : x
  2. Step 2: Convert to fraction form
    85,668.06/127,888.92 = 74,461.04/x
  3. Step 3: Cross multiply
    85,668.06x = 127,888.92 × 74,461.04
  4. Step 4: Simplify right side
    85,668.06x = 9,522,741,987.68
  5. Step 5: Solve for x
    x = 9,522,741,987.68/85,668.06
  6. Step 6: Final answer
    x = 111,158.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.