Home / 140,405.64-193,753.04-76,743.48

Finding the Fourth Proportional to 140,405.64, 193,753.04 and 76,743.48

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Solution

The fourth proportional to 140,405.64, 193,753.04 and 76,743.48 is: 105,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,405.64 : 193,753.04 = 76,743.48 : x
  2. Step 2: Convert to fraction form
    140,405.64/193,753.04 = 76,743.48/x
  3. Step 3: Cross multiply
    140,405.64x = 193,753.04 × 76,743.48
  4. Step 4: Simplify right side
    140,405.64x = 14,869,282,550.18
  5. Step 5: Solve for x
    x = 14,869,282,550.18/140,405.64
  6. Step 6: Final answer
    x = 105,902.32

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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.