Home / 140,020.16-193,171.36-81,044.83

Finding the Fourth Proportional to 140,020.16, 193,171.36 and 81,044.83

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Solution

The fourth proportional to 140,020.16, 193,171.36 and 81,044.83 is: 111,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,020.16 : 193,171.36 = 81,044.83 : x
  2. Step 2: Convert to fraction form
    140,020.16/193,171.36 = 81,044.83/x
  3. Step 3: Cross multiply
    140,020.16x = 193,171.36 × 81,044.83
  4. Step 4: Simplify right side
    140,020.16x = 15,655,539,346.53
  5. Step 5: Solve for x
    x = 15,655,539,346.53/140,020.16
  6. Step 6: Final answer
    x = 111,809.18

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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.