Home / 140,205.12-193,485.72-76,545.36

Finding the Fourth Proportional to 140,205.12, 193,485.72 and 76,545.36

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Solution

The fourth proportional to 140,205.12, 193,485.72 and 76,545.36 is: 105,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,205.12 : 193,485.72 = 76,545.36 : x
  2. Step 2: Convert to fraction form
    140,205.12/193,485.72 = 76,545.36/x
  3. Step 3: Cross multiply
    140,205.12x = 193,485.72 × 76,545.36
  4. Step 4: Simplify right side
    140,205.12x = 14,810,434,092.26
  5. Step 5: Solve for x
    x = 14,810,434,092.26/140,205.12
  6. Step 6: Final answer
    x = 105,634.05

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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.