Home / 243,637.20-365,455.80-66,171.60

Finding the Fourth Proportional to 243,637.20, 365,455.80 and 66,171.60

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Solution

The fourth proportional to 243,637.20, 365,455.80 and 66,171.60 is: 99,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,637.20 : 365,455.80 = 66,171.60 : x
  2. Step 2: Convert to fraction form
    243,637.20/365,455.80 = 66,171.60/x
  3. Step 3: Cross multiply
    243,637.20x = 365,455.80 × 66,171.60
  4. Step 4: Simplify right side
    243,637.20x = 24,182,795,015.28
  5. Step 5: Solve for x
    x = 24,182,795,015.28/243,637.20
  6. Step 6: Final answer
    x = 99,257.40

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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.