Home / 286,135.20-429,202.80-99,165.60

Finding the Fourth Proportional to 286,135.20, 429,202.80 and 99,165.60

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Solution

The fourth proportional to 286,135.20, 429,202.80 and 99,165.60 is: 148,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,135.20 : 429,202.80 = 99,165.60 : x
  2. Step 2: Convert to fraction form
    286,135.20/429,202.80 = 99,165.60/x
  3. Step 3: Cross multiply
    286,135.20x = 429,202.80 × 99,165.60
  4. Step 4: Simplify right side
    286,135.20x = 42,562,153,183.68
  5. Step 5: Solve for x
    x = 42,562,153,183.68/286,135.20
  6. Step 6: Final answer
    x = 148,748.40

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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.