Home / 199,318.60-298,829.10-120,416.20

Finding the Fourth Proportional to 199,318.60, 298,829.10 and 120,416.20

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Solution

The fourth proportional to 199,318.60, 298,829.10 and 120,416.20 is: 180,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,318.60 : 298,829.10 = 120,416.20 : x
  2. Step 2: Convert to fraction form
    199,318.60/298,829.10 = 120,416.20/x
  3. Step 3: Cross multiply
    199,318.60x = 298,829.10 × 120,416.20
  4. Step 4: Simplify right side
    199,318.60x = 35,983,864,671.42
  5. Step 5: Solve for x
    x = 35,983,864,671.42/199,318.60
  6. Step 6: Final answer
    x = 180,534.40

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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.