Home / 139,289.86-192,221.01-75,627.70

Finding the Fourth Proportional to 139,289.86, 192,221.01 and 75,627.70

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Solution

The fourth proportional to 139,289.86, 192,221.01 and 75,627.70 is: 104,366.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,289.86 : 192,221.01 = 75,627.70 : x
  2. Step 2: Convert to fraction form
    139,289.86/192,221.01 = 75,627.70/x
  3. Step 3: Cross multiply
    139,289.86x = 192,221.01 × 75,627.70
  4. Step 4: Simplify right side
    139,289.86x = 14,537,232,877.98
  5. Step 5: Solve for x
    x = 14,537,232,877.98/139,289.86
  6. Step 6: Final answer
    x = 104,366.77

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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.