Home / 163,520.96-245,242.56-45,189.68

Finding the Fourth Proportional to 163,520.96, 245,242.56 and 45,189.68

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Solution

The fourth proportional to 163,520.96, 245,242.56 and 45,189.68 is: 67,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,520.96 : 245,242.56 = 45,189.68 : x
  2. Step 2: Convert to fraction form
    163,520.96/245,242.56 = 45,189.68/x
  3. Step 3: Cross multiply
    163,520.96x = 245,242.56 × 45,189.68
  4. Step 4: Simplify right side
    163,520.96x = 11,082,432,808.78
  5. Step 5: Solve for x
    x = 11,082,432,808.78/163,520.96
  6. Step 6: Final answer
    x = 67,773.78

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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.