Home / 130,845.60-196,268.40-86,522.40

Finding the Fourth Proportional to 130,845.60, 196,268.40 and 86,522.40

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Solution

The fourth proportional to 130,845.60, 196,268.40 and 86,522.40 is: 129,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,845.60 : 196,268.40 = 86,522.40 : x
  2. Step 2: Convert to fraction form
    130,845.60/196,268.40 = 86,522.40/x
  3. Step 3: Cross multiply
    130,845.60x = 196,268.40 × 86,522.40
  4. Step 4: Simplify right side
    130,845.60x = 16,981,613,012.16
  5. Step 5: Solve for x
    x = 16,981,613,012.16/130,845.60
  6. Step 6: Final answer
    x = 129,783.60

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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.