Home / 140,340.13-193,669.05-76,678.41

Finding the Fourth Proportional to 140,340.13, 193,669.05 and 76,678.41

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Solution

The fourth proportional to 140,340.13, 193,669.05 and 76,678.41 is: 105,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,340.13 : 193,669.05 = 76,678.41 : x
  2. Step 2: Convert to fraction form
    140,340.13/193,669.05 = 76,678.41/x
  3. Step 3: Cross multiply
    140,340.13x = 193,669.05 × 76,678.41
  4. Step 4: Simplify right side
    140,340.13x = 14,850,234,820.21
  5. Step 5: Solve for x
    x = 14,850,234,820.21/140,340.13
  6. Step 6: Final answer
    x = 105,816.03

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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.