Home / 140,080.12-193,310.58-76,418.18

Finding the Fourth Proportional to 140,080.12, 193,310.58 and 76,418.18

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Solution

The fourth proportional to 140,080.12, 193,310.58 and 76,418.18 is: 105,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,080.12 : 193,310.58 = 76,418.18 : x
  2. Step 2: Convert to fraction form
    140,080.12/193,310.58 = 76,418.18/x
  3. Step 3: Cross multiply
    140,080.12x = 193,310.58 × 76,418.18
  4. Step 4: Simplify right side
    140,080.12x = 14,772,442,698.34
  5. Step 5: Solve for x
    x = 14,772,442,698.34/140,080.12
  6. Step 6: Final answer
    x = 105,457.10

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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.