Home / 140,565.35-193,982.37-76,904.21

Finding the Fourth Proportional to 140,565.35, 193,982.37 and 76,904.21

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Solution

The fourth proportional to 140,565.35, 193,982.37 and 76,904.21 is: 106,129.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,565.35 : 193,982.37 = 76,904.21 : x
  2. Step 2: Convert to fraction form
    140,565.35/193,982.37 = 76,904.21/x
  3. Step 3: Cross multiply
    140,565.35x = 193,982.37 × 76,904.21
  4. Step 4: Simplify right side
    140,565.35x = 14,918,060,918.78
  5. Step 5: Solve for x
    x = 14,918,060,918.78/140,565.35
  6. Step 6: Final answer
    x = 106,129.01

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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.