Home / 190,856.40-286,284.60-189,106.80

Finding the Fourth Proportional to 190,856.40, 286,284.60 and 189,106.80

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Solution

The fourth proportional to 190,856.40, 286,284.60 and 189,106.80 is: 283,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,856.40 : 286,284.60 = 189,106.80 : x
  2. Step 2: Convert to fraction form
    190,856.40/286,284.60 = 189,106.80/x
  3. Step 3: Cross multiply
    190,856.40x = 286,284.60 × 189,106.80
  4. Step 4: Simplify right side
    190,856.40x = 54,138,364,595.28
  5. Step 5: Solve for x
    x = 54,138,364,595.28/190,856.40
  6. Step 6: Final answer
    x = 283,660.20

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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.