Home / 190,841.20-286,261.80-120,799.60

Finding the Fourth Proportional to 190,841.20, 286,261.80 and 120,799.60

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Solution

The fourth proportional to 190,841.20, 286,261.80 and 120,799.60 is: 181,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,841.20 : 286,261.80 = 120,799.60 : x
  2. Step 2: Convert to fraction form
    190,841.20/286,261.80 = 120,799.60/x
  3. Step 3: Cross multiply
    190,841.20x = 286,261.80 × 120,799.60
  4. Step 4: Simplify right side
    190,841.20x = 34,580,310,935.28
  5. Step 5: Solve for x
    x = 34,580,310,935.28/190,841.20
  6. Step 6: Final answer
    x = 181,199.40

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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.