Home / 155,172.87-232,861.37-85,101.39

Finding the Fourth Proportional to 155,172.87, 232,861.37 and 85,101.39

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Solution

The fourth proportional to 155,172.87, 232,861.37 and 85,101.39 is: 127,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,172.87 : 232,861.37 = 85,101.39 : x
  2. Step 2: Convert to fraction form
    155,172.87/232,861.37 = 85,101.39/x
  3. Step 3: Cross multiply
    155,172.87x = 232,861.37 × 85,101.39
  4. Step 4: Simplify right side
    155,172.87x = 19,816,825,838.80
  5. Step 5: Solve for x
    x = 19,816,825,838.80/155,172.87
  6. Step 6: Final answer
    x = 127,708.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.