Home / 140,208.06-193,478.12-76,545.72

Finding the Fourth Proportional to 140,208.06, 193,478.12 and 76,545.72

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Solution

The fourth proportional to 140,208.06, 193,478.12 and 76,545.72 is: 105,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,208.06 : 193,478.12 = 76,545.72 : x
  2. Step 2: Convert to fraction form
    140,208.06/193,478.12 = 76,545.72/x
  3. Step 3: Cross multiply
    140,208.06x = 193,478.12 × 76,545.72
  4. Step 4: Simplify right side
    140,208.06x = 14,809,921,616.92
  5. Step 5: Solve for x
    x = 14,809,921,616.92/140,208.06
  6. Step 6: Final answer
    x = 105,628.18

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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.