Home / 105,282.18-145,188.92-68,929.38

Finding the Fourth Proportional to 105,282.18, 145,188.92 and 68,929.38

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Solution

The fourth proportional to 105,282.18, 145,188.92 and 68,929.38 is: 95,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,282.18 : 145,188.92 = 68,929.38 : x
  2. Step 2: Convert to fraction form
    105,282.18/145,188.92 = 68,929.38/x
  3. Step 3: Cross multiply
    105,282.18x = 145,188.92 × 68,929.38
  4. Step 4: Simplify right side
    105,282.18x = 10,007,782,410.79
  5. Step 5: Solve for x
    x = 10,007,782,410.79/105,282.18
  6. Step 6: Final answer
    x = 95,056.76

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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.