Home / 145,438.57-218,162.63-40,248.73

Finding the Fourth Proportional to 145,438.57, 218,162.63 and 40,248.73

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Solution

The fourth proportional to 145,438.57, 218,162.63 and 40,248.73 is: 60,374.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,438.57 : 218,162.63 = 40,248.73 : x
  2. Step 2: Convert to fraction form
    145,438.57/218,162.63 = 40,248.73/x
  3. Step 3: Cross multiply
    145,438.57x = 218,162.63 × 40,248.73
  4. Step 4: Simplify right side
    145,438.57x = 8,780,768,589.72
  5. Step 5: Solve for x
    x = 8,780,768,589.72/145,438.57
  6. Step 6: Final answer
    x = 60,374.42

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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.