Home / 139,211.38-192,110.70-75,547.81

Finding the Fourth Proportional to 139,211.38, 192,110.70 and 75,547.81

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Solution

The fourth proportional to 139,211.38, 192,110.70 and 75,547.81 is: 104,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,211.38 : 192,110.70 = 75,547.81 : x
  2. Step 2: Convert to fraction form
    139,211.38/192,110.70 = 75,547.81/x
  3. Step 3: Cross multiply
    139,211.38x = 192,110.70 × 75,547.81
  4. Step 4: Simplify right side
    139,211.38x = 14,513,542,662.57
  5. Step 5: Solve for x
    x = 14,513,542,662.57/139,211.38
  6. Step 6: Final answer
    x = 104,255.43

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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.