Home / 121,968.16-182,952.24-80,405.44

Finding the Fourth Proportional to 121,968.16, 182,952.24 and 80,405.44

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Solution

The fourth proportional to 121,968.16, 182,952.24 and 80,405.44 is: 120,608.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,968.16 : 182,952.24 = 80,405.44 : x
  2. Step 2: Convert to fraction form
    121,968.16/182,952.24 = 80,405.44/x
  3. Step 3: Cross multiply
    121,968.16x = 182,952.24 × 80,405.44
  4. Step 4: Simplify right side
    121,968.16x = 14,710,355,356.19
  5. Step 5: Solve for x
    x = 14,710,355,356.19/121,968.16
  6. Step 6: Final answer
    x = 120,608.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.