Home / 140,572.16-193,983.36-76,912.64

Finding the Fourth Proportional to 140,572.16, 193,983.36 and 76,912.64

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Solution

The fourth proportional to 140,572.16, 193,983.36 and 76,912.64 is: 106,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,572.16 : 193,983.36 = 76,912.64 : x
  2. Step 2: Convert to fraction form
    140,572.16/193,983.36 = 76,912.64/x
  3. Step 3: Cross multiply
    140,572.16x = 193,983.36 × 76,912.64
  4. Step 4: Simplify right side
    140,572.16x = 14,919,772,333.67
  5. Step 5: Solve for x
    x = 14,919,772,333.67/140,572.16
  6. Step 6: Final answer
    x = 106,136.04

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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.