Home / 139,545.45-192,575.07-75,885.12

Finding the Fourth Proportional to 139,545.45, 192,575.07 and 75,885.12

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Solution

The fourth proportional to 139,545.45, 192,575.07 and 75,885.12 is: 104,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,545.45 : 192,575.07 = 75,885.12 : x
  2. Step 2: Convert to fraction form
    139,545.45/192,575.07 = 75,885.12/x
  3. Step 3: Cross multiply
    139,545.45x = 192,575.07 × 75,885.12
  4. Step 4: Simplify right side
    139,545.45x = 14,613,582,295.96
  5. Step 5: Solve for x
    x = 14,613,582,295.96/139,545.45
  6. Step 6: Final answer
    x = 104,722.74

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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.