Home / 186,629.60-279,944.40-127,143.20

Finding the Fourth Proportional to 186,629.60, 279,944.40 and 127,143.20

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Solution

The fourth proportional to 186,629.60, 279,944.40 and 127,143.20 is: 190,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,629.60 : 279,944.40 = 127,143.20 : x
  2. Step 2: Convert to fraction form
    186,629.60/279,944.40 = 127,143.20/x
  3. Step 3: Cross multiply
    186,629.60x = 279,944.40 × 127,143.20
  4. Step 4: Simplify right side
    186,629.60x = 35,593,026,838.08
  5. Step 5: Solve for x
    x = 35,593,026,838.08/186,629.60
  6. Step 6: Final answer
    x = 190,714.80

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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.