Home / 140,086.08-193,334.88-78,002.88

Finding the Fourth Proportional to 140,086.08, 193,334.88 and 78,002.88

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Solution

The fourth proportional to 140,086.08, 193,334.88 and 78,002.88 is: 107,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,086.08 : 193,334.88 = 78,002.88 : x
  2. Step 2: Convert to fraction form
    140,086.08/193,334.88 = 78,002.88/x
  3. Step 3: Cross multiply
    140,086.08x = 193,334.88 × 78,002.88
  4. Step 4: Simplify right side
    140,086.08x = 15,080,677,444.45
  5. Step 5: Solve for x
    x = 15,080,677,444.45/140,086.08
  6. Step 6: Final answer
    x = 107,652.93

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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.