Home / 139,149.18-192,025.98-75,487.23

Finding the Fourth Proportional to 139,149.18, 192,025.98 and 75,487.23

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Solution

The fourth proportional to 139,149.18, 192,025.98 and 75,487.23 is: 104,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,149.18 : 192,025.98 = 75,487.23 : x
  2. Step 2: Convert to fraction form
    139,149.18/192,025.98 = 75,487.23/x
  3. Step 3: Cross multiply
    139,149.18x = 192,025.98 × 75,487.23
  4. Step 4: Simplify right side
    139,149.18x = 14,495,509,318.24
  5. Step 5: Solve for x
    x = 14,495,509,318.24/139,149.18
  6. Step 6: Final answer
    x = 104,172.44

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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.