Home / 145,431.52-218,152.16-40,241.68

Finding the Fourth Proportional to 145,431.52, 218,152.16 and 40,241.68

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Solution

The fourth proportional to 145,431.52, 218,152.16 and 40,241.68 is: 60,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,431.52 : 218,152.16 = 40,241.68 : x
  2. Step 2: Convert to fraction form
    145,431.52/218,152.16 = 40,241.68/x
  3. Step 3: Cross multiply
    145,431.52x = 218,152.16 × 40,241.68
  4. Step 4: Simplify right side
    145,431.52x = 8,778,809,414.03
  5. Step 5: Solve for x
    x = 8,778,809,414.03/145,431.52
  6. Step 6: Final answer
    x = 60,363.87

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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.