Home / 145,450.64-218,380.31-74,424.21

Finding the Fourth Proportional to 145,450.64, 218,380.31 and 74,424.21

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Solution

The fourth proportional to 145,450.64, 218,380.31 and 74,424.21 is: 111,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,450.64 : 218,380.31 = 74,424.21 : x
  2. Step 2: Convert to fraction form
    145,450.64/218,380.31 = 74,424.21/x
  3. Step 3: Cross multiply
    145,450.64x = 218,380.31 × 74,424.21
  4. Step 4: Simplify right side
    145,450.64x = 16,252,781,679.18
  5. Step 5: Solve for x
    x = 16,252,781,679.18/145,450.64
  6. Step 6: Final answer
    x = 111,740.88

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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.