Home / 145,620.64-218,431.04-40,439.62

Finding the Fourth Proportional to 145,620.64, 218,431.04 and 40,439.62

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Solution

The fourth proportional to 145,620.64, 218,431.04 and 40,439.62 is: 60,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,620.64 : 218,431.04 = 40,439.62 : x
  2. Step 2: Convert to fraction form
    145,620.64/218,431.04 = 40,439.62/x
  3. Step 3: Cross multiply
    145,620.64x = 218,431.04 × 40,439.62
  4. Step 4: Simplify right side
    145,620.64x = 8,833,268,253.80
  5. Step 5: Solve for x
    x = 8,833,268,253.80/145,620.64
  6. Step 6: Final answer
    x = 60,659.45

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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.