Home / 136,439.60-188,190.36-79,862.24

Finding the Fourth Proportional to 136,439.60, 188,190.36 and 79,862.24

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Solution

The fourth proportional to 136,439.60, 188,190.36 and 79,862.24 is: 110,153.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,439.60 : 188,190.36 = 79,862.24 : x
  2. Step 2: Convert to fraction form
    136,439.60/188,190.36 = 79,862.24/x
  3. Step 3: Cross multiply
    136,439.60x = 188,190.36 × 79,862.24
  4. Step 4: Simplify right side
    136,439.60x = 15,029,303,696.01
  5. Step 5: Solve for x
    x = 15,029,303,696.01/136,439.60
  6. Step 6: Final answer
    x = 110,153.53

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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.