Home / 140,575.68-193,898.88-83,966.40

Finding the Fourth Proportional to 140,575.68, 193,898.88 and 83,966.40

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Solution

The fourth proportional to 140,575.68, 193,898.88 and 83,966.40 is: 115,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,575.68 : 193,898.88 = 83,966.40 : x
  2. Step 2: Convert to fraction form
    140,575.68/193,898.88 = 83,966.40/x
  3. Step 3: Cross multiply
    140,575.68x = 193,898.88 × 83,966.40
  4. Step 4: Simplify right side
    140,575.68x = 16,280,990,917.63
  5. Step 5: Solve for x
    x = 16,280,990,917.63/140,575.68
  6. Step 6: Final answer
    x = 115,816.55

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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.