Home / 188,439.60-282,659.40-70,086.45

Finding the Fourth Proportional to 188,439.60, 282,659.40 and 70,086.45

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Solution

The fourth proportional to 188,439.60, 282,659.40 and 70,086.45 is: 105,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,439.60 : 282,659.40 = 70,086.45 : x
  2. Step 2: Convert to fraction form
    188,439.60/282,659.40 = 70,086.45/x
  3. Step 3: Cross multiply
    188,439.60x = 282,659.40 × 70,086.45
  4. Step 4: Simplify right side
    188,439.60x = 19,810,593,905.13
  5. Step 5: Solve for x
    x = 19,810,593,905.13/188,439.60
  6. Step 6: Final answer
    x = 105,129.68

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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.