Home / 107,012.75-147,585.44-66,684.47

Finding the Fourth Proportional to 107,012.75, 147,585.44 and 66,684.47

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Solution

The fourth proportional to 107,012.75, 147,585.44 and 66,684.47 is: 91,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,012.75 : 147,585.44 = 66,684.47 : x
  2. Step 2: Convert to fraction form
    107,012.75/147,585.44 = 66,684.47/x
  3. Step 3: Cross multiply
    107,012.75x = 147,585.44 × 66,684.47
  4. Step 4: Simplify right side
    107,012.75x = 9,841,656,274.90
  5. Step 5: Solve for x
    x = 9,841,656,274.90/107,012.75
  6. Step 6: Final answer
    x = 91,967.14

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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.