Home / 140,168.26-193,433.64-76,507.12

Finding the Fourth Proportional to 140,168.26, 193,433.64 and 76,507.12

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Solution

The fourth proportional to 140,168.26, 193,433.64 and 76,507.12 is: 105,580.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,168.26 : 193,433.64 = 76,507.12 : x
  2. Step 2: Convert to fraction form
    140,168.26/193,433.64 = 76,507.12/x
  3. Step 3: Cross multiply
    140,168.26x = 193,433.64 × 76,507.12
  4. Step 4: Simplify right side
    140,168.26x = 14,799,050,707.52
  5. Step 5: Solve for x
    x = 14,799,050,707.52/140,168.26
  6. Step 6: Final answer
    x = 105,580.61

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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.