Home / 140,197.20-193,476.72-76,538.40

Finding the Fourth Proportional to 140,197.20, 193,476.72 and 76,538.40

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Solution

The fourth proportional to 140,197.20, 193,476.72 and 76,538.40 is: 105,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,197.20 : 193,476.72 = 76,538.40 : x
  2. Step 2: Convert to fraction form
    140,197.20/193,476.72 = 76,538.40/x
  3. Step 3: Cross multiply
    140,197.20x = 193,476.72 × 76,538.40
  4. Step 4: Simplify right side
    140,197.20x = 14,808,398,586.05
  5. Step 5: Solve for x
    x = 14,808,398,586.05/140,197.20
  6. Step 6: Final answer
    x = 105,625.49

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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.