Home / 190,930.80-286,396.20-146,780.40

Finding the Fourth Proportional to 190,930.80, 286,396.20 and 146,780.40

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Solution

The fourth proportional to 190,930.80, 286,396.20 and 146,780.40 is: 220,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,930.80 : 286,396.20 = 146,780.40 : x
  2. Step 2: Convert to fraction form
    190,930.80/286,396.20 = 146,780.40/x
  3. Step 3: Cross multiply
    190,930.80x = 286,396.20 × 146,780.40
  4. Step 4: Simplify right side
    190,930.80x = 42,037,348,794.48
  5. Step 5: Solve for x
    x = 42,037,348,794.48/190,930.80
  6. Step 6: Final answer
    x = 220,170.60

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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.