Home / 140,420.64-210,664.36-45,651.24

Finding the Fourth Proportional to 140,420.64, 210,664.36 and 45,651.24

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Solution

The fourth proportional to 140,420.64, 210,664.36 and 45,651.24 is: 68,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,420.64 : 210,664.36 = 45,651.24 : x
  2. Step 2: Convert to fraction form
    140,420.64/210,664.36 = 45,651.24/x
  3. Step 3: Cross multiply
    140,420.64x = 210,664.36 × 45,651.24
  4. Step 4: Simplify right side
    140,420.64x = 9,617,089,257.81
  5. Step 5: Solve for x
    x = 9,617,089,257.81/140,420.64
  6. Step 6: Final answer
    x = 68,487.72

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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.