Home / 117,688.86-162,447.78-75,247.56

Finding the Fourth Proportional to 117,688.86, 162,447.78 and 75,247.56

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Solution

The fourth proportional to 117,688.86, 162,447.78 and 75,247.56 is: 103,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,688.86 : 162,447.78 = 75,247.56 : x
  2. Step 2: Convert to fraction form
    117,688.86/162,447.78 = 75,247.56/x
  3. Step 3: Cross multiply
    117,688.86x = 162,447.78 × 75,247.56
  4. Step 4: Simplify right side
    117,688.86x = 12,223,799,072.42
  5. Step 5: Solve for x
    x = 12,223,799,072.42/117,688.86
  6. Step 6: Final answer
    x = 103,865.39

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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.