Home / 140,218.86-193,509.90-76,562.58

Finding the Fourth Proportional to 140,218.86, 193,509.90 and 76,562.58

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Solution

The fourth proportional to 140,218.86, 193,509.90 and 76,562.58 is: 105,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,218.86 : 193,509.90 = 76,562.58 : x
  2. Step 2: Convert to fraction form
    140,218.86/193,509.90 = 76,562.58/x
  3. Step 3: Cross multiply
    140,218.86x = 193,509.90 × 76,562.58
  4. Step 4: Simplify right side
    140,218.86x = 14,815,617,199.54
  5. Step 5: Solve for x
    x = 14,815,617,199.54/140,218.86
  6. Step 6: Final answer
    x = 105,660.66

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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.